Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AIR PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/208266
Kind Code:
A1
Abstract:
The present invention discloses the air purification system (100) that includes at least one pollution control unit (110), a server (120) and a monitoring station (130). The pollution control unit (110) includes at least one air purification unit (102), ON/OFF controller (103) in configuration with each air purification unit (102), a microcontroller (104), at least one sensor (105) and a communication device (107). The air purification unit (102) is adapted for suction of atmospheric air and filtration thereof. The air purification unit (102) communicates with the microcontroller (104) by wired or wireless medium. The microcontroller (104) is in configuration with the sensor (105) and the communication device (107). The communication device (107) is configured to communicate to the monitoring station (130) via the server (120).

Inventors:
CHAPHEKAR, Amol (C-204, Rohan Leher Mumbai-Pune Express Highway Near Mahindra Car Showroom, Baner,, Maharashtra, Pune-411045, IN)
Application Number:
IN2017/050223
Publication Date:
December 07, 2017
Filing Date:
June 02, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHAPHEKAR, Amol (C-204, Rohan Leher Mumbai-Pune Express Highway Near Mahindra Car Showroom, Baner,, Maharashtra, Pune-411045, IN)
International Classes:
B01D46/00; F24F3/00; F24F11/00
Foreign References:
US5428964A1995-07-04
US20070032186A12007-02-08
US20170080373A12017-03-23
Attorney, Agent or Firm:
MAHURKAR, Anand Gopalkrishna (KRISHNA & SAURASTRI ASSOCIATES LLP, 74/F Venus,Worli Sea Face,Mumbai – 8, Maharashtra, 400 01, IN)
Download PDF:
Claims:
C laims :

An air purification system, comprising: a pollution control unit configured to communicate with a monitoring station through a server, the pollution control unit having at least one air purification unit; an ON/OFF controller for switching ON or OFF the air purification unit; at least one sensor for sensing atmospheric pollution level; at least one sensor for sensing dust accumulation in the air purification unit; and a microcontroller communicating with the sensors thereby communicating with the ON/OFF controller for controlling the air purification unit based on atmospheric pollution level, the microcontroller communicating with the server through a communication device, the monitoring station monitoring the air purification unit through the mi crocontrol I er and the server.

The air purification system as claimed in claim 1, wherein the sensor senses amount of hazardous gases such as CO, C02, N02 and the like

An air purification unit comprising: a housing, having an inlet and an outlet, the inlet having a first grill, the outlet having a second grill; a first filter removably positioned at the inlet of the housing; a fan unit having a first fan, a second fan and a motor positioned therein, the fan unit facilitating suction of polluted air from the inlet through the first filter and releasing the filtered air through the outlet; and

¾ a second filter removably positioned between the fan unit and the outlet of the housing .

4. The air purification unit as claimed in claim 3, wherein the first grill has a conical shape.

¾ 5. The air purification unit as claimed in claim 3, wherein the first filter and the second filter have a mesh size to capture dust particles having size from about PM 2.5 to about PM 10.

The air purification unit as claimed in claim 3, said air purification unit includes at least one scrubbing unit attached to at least one filter for removal of harmful elements of from the air.

A method of purification of air comprising:

i . sensi ng the I evel of pol I uti on i n the atmospheri c ai r; ii. determining if the air purification unit is required to turn ON or OFF to maintain safe level of pollution; and

iii. turning ON or OFF the air purification unit by ON/ OFF controller configured with the air purification unit via the microcontroller for purifying of atmospheric air through at least one air purification unit of a pollution control unit when the level of the pollution exceeds the predetermined level.

8. The method of purification of air as claimed in claim 7, wherein the sensing the level includes levels of dust and harmful gases in the air.

Description:
AIR PU RIFICAT ION SY ST E M

F ield of the invention

The present invention relates to an air purification system for reducing pollution. Background of the invention

Air pollution is generally known as a contamination of air with poisonous gases, ¾ pollen grains, dust particles, micro-organisms and the like. The sources of air pollution include vehicles or factories emitting hazardous gases, smoke, pollen grains and the like. The polluted air may cause damages to various elements of the environment such as plants, animals, human beings. For example intake of polluted air may cause respiration problems and lung diseases to human beings.

¾ Various attempts have been taken to reduce and maintain reduced pollution level in the atmosphere that includes improving exhaust systems of vehicles, factories. The system and methods for reducing air pollution involve high cost and complex mechanisms. The methods and systems disclosed in the prior art control emission of pollutants into the atmosphere but they fail to purify the polluted air consistently.

Accordingly, there is need of an air purification system that filters polluted air, reduces the level of pollution in an atmosphere and maintains the same.

Brief description of the drawings

FIG. 1 is a block diagram of an air purification system in accordance with the ttl present invention;

FIG. 2 is an exploded view of an air purification unit of the air purification system in accordance with an embodiment;

FIG. 3A is a perspective view of an air purification unit in accordance with another embodiment of the present invention; t& FIG. 3B is an exploded view of an air purification unit of the air purification system of FIG. 3A; FIG. 4A is a perspective view of an air purification unit in accordance with yet another embodiment of the present invention;

FIG. 4B is an exploded view of an air purification unit of FIG. 4A;

FIG. 5A is a perspective view of an air purification unit in accordance with further ¾ embodi ment of the present i nventi on;

FIG. 5B is an exploded view of an air purification unit of FIG. 5A;

FIG. 5C is a perspective view of a fan of the air purification units of the present invention; and

FIG. 6 is an image of on site implemented air purification units.

¾ Summary of invention

The present invention relates to an air purification system (100) that includes at least one pollution control unit (110), a server (120) and a monitoring station (130). The pollution control unit (110) has at least one air purification unit (102) for purifying the polluted air, at least one sensor (105) for sensing dust

¾ accumulation in the air purification unit (102), at least one sensor (106) for sensing the atmospheric pollution level, an ON/OFF controller (103) for switching ON or OFF the air purification unit (102), a microcontroller (104) for communicating with the sensors (105), (106) and the ON/OFF controller (103) for operation of the air purification unit (102) based on the atmospheric pollution ttl level. The monitoring station (130) is used for monitoring operation of the air purification unit (102). The monitoring station (130) is configured to communicate with the microcontroller (104). The microcontroller (104) is configured to communicate with the monitoring station (130) via a server (120) and a communication unit (107) for centralization of air purification system (100). t& The present invention further discloses the method of purification of air. In a first step, the level of pollution in the atmospheric air is sensed by the sensor (106). In next step, requirement of the air purification unit (102) to maintain safe level of pollution is determined. In next step, the air purification unit (102) is operated by ON/ OFF controller (103) configured with the air purification unit (102) via the microcontroller (104) for purifying of atmospheric air through at least one air purification unit (102) of a pollution control unit (110) when the level of the pollution exceeds the predetermined level.

¾ Description of the invention

Although specific terms are used in the following description for sake of clarity, these terms are intended to refer only to particular structure of the invention selected for illustration in the drawings, and are not intended to define or I i mit the scope of the i nventi on.

¾ In general aspect the present invention relates to the air purification system that includes at least one pollution control unit, at least one server and at least one monitoring station. The pollution control unit includes at least one air purification unit ON/OFF control in configuration with each air purification unit, a microcontroller, at least one sensor and a communication device. The air

¾ purification unit is adapted for suction of atmospheric air and filtration thereof.

The air purification unit communicates with the microcontroller by wired or wireless medium. The microcontroller is in configuration with the sensor and the communication device. The sensor senses level of at least one hazardous gas in the atmospheric air by working in configuration with the microcontroller. This ttl information is communicated to the server through the communication device.

The server works in configuration with the monitoring device. The server and the monitoring device have a record of predetermined levels of hazardous gases may be considered safe in order to maintain pollution free atmosphere. The information received by the communication device is matched with the record t& maintained by the server and monitoring station, accordingly the monitoring station sends signals for turning ON/OFF the air purification unit by ON/OFF controller. If the level of harmful gases detected by the sensors is high than the recorded level by the server and monitoring station, the monitoring station sends signals to keep the air purification unit turned ON till the level of the harmful gases reduce upto or below the predetermined level.

The present invention is illustrated with reference to the accompanying drawings, throughout which reference numbers indicate ¾ corresponding parts in the various figures.

Referring to FIG.1, an air purification system in accordance with the present invention is shown. The air purification system (100) comprises at least one pollution control unit (110), a central server (120) and a monitoring station (130). The pollution control unit (110) has at least one air purification unit (102)

¾ for purifying the polluted air, at least one sensor (105) for sensing dust accumulation in the air purification unit (102), at least one sensor (106) for sensing the atmospheric pollution level, an ON/OFF controller (103) for switching ON or OFF the air purification unit (102), a microcontroller (104) for communicating with the sensors (105), (106) and the ON/OFF controller (103) for

¾ operation of the air purification unit (102) based on the atmospheric pollution level. The monitoring station (130) is used for monitoring operation of the air purification unit (102). The monitoring station (130) is configured to communicate with the microcontroller (104). The microcontroller (104) is configured to the monitoring station (130) via a server (120) and a communication ttl unit (107) for centralization of air purification system (100).

In accordance with an embodiment of the present invention, the pollution control unit (110) includes at least one air purification unit (102), an ON/OFF controller (103), a microcontroller integrated with PCB (104) (microcontroller (104), hereinafter), a first sensor (105), a second sensor (106) and a t& communication device (107). The air purification unit (102) is controllable by the ON/OFF controller (103). The ON/OFF controller (103) is in communication with the mi crocontrol I er ( 104) .

In this one embodiment, the first sensor (105) acts as a purification filter health sensor. The first sensor (105) senses dust accumulation in the air purification unit (102) by communicating with the microcontroller (104). The first sensor (105) senses the amount of dirt or dust accumulated in the air purification unit (102) and conveys the same to the microcontroller (104). The second sensor

(106) acts as a carbon sensor. The second sensor (106) senses the level of ¾ hazardous gases such as Carbon Monoxide, (CO), Carbon di-oxide (C0 2 ),

Nitrogen Oxide (N0 2 ) and the like in the atmosphere. However, it is understood here that the number of sensors (105),(106) may vary in alternative embodiments of the present invention.

The microcontroller (104) is connected with the communication device ¾ (107). In this one embodiment the communication device (107) is the wireless communication device (107) such as GPRS or GSM or the like. However, it is understood here that the communication device (107) may vary in alternative embodiments of the present invention. The wireless telecommunication device

(107) transfers the signals received from the microcontroller (104) to the server ¾ (120). The server (120) is in communication with the monitoring station (130). In this embodiment, the server (120) is a fixed IP server having MS SQL database. The monitoring station (130) working in configuration with the server (120) determines pollution level in a particular region, matches the same with prerecorded levels of pollution and switches the at least one air purification unit *ft ( 102) O N and/or OFF through the O N/O F F control I er ( 103) .

The monitoring station (130) indentifies the pollution level in a particular region according to the signals received from the second sensor (106) through the microcontroller (104).

Referring to FIG. 2, an air purification unit (102) includes a housing (203), t& having an inlet and an outlet. At least one filter (204) is removably adapted at the inlet of the housing (203). At least one fan unit (205) is positioned in the housing (203) for suction of polluted air from the inlet through the filter (204) and releases the f i Itered ai r through the outl et. Fig. 2 shows an exploded view of the air purification unit (102) of the pollution control unit (110) in accordance with an embodiment of the invention. The air purification unit (102) includes a first grill (202), a housing (203), a first filter (204), a fan unit (205), a first fan (206A), a second fan (206B), a motor

¾ (207), a second filter (208) and a second grill (210) axially positioned along a central vertical axis. The first grill (202) is connected to the housing (203). The first grill (202) encloses the first filter (204) therein. The housing (203) includes the fan unit (205). The fan unit (205) encloses the first fan (206A) and the second fan (206B). The motor (207) is positioned between the first fan (206A) and the

¾ second fan (206B). The second filter (208) is positioned below a predefined distance from the second fan (206B). The housing (203) has the exhaust grill (210) configured preferably at a bottom portion thereof.

The first grill (202) is a grill frame having a predefined shape. In this one embodiment, the first grill (202) has a conical profile. A bottom end portion of the ¾ conical structure of the first grill (202) is connected to an upper portion of the housing (203). In this one embodiment, the housing (203) has a cylindrical shape. However, it is understood here that the profile of the first grill (202) and the housing (203) may vary in alternative embodiments of the present invention.

The first grill (202) encloses the first filter (204) positioned therein. The ttl first grill (202) restricts the contact of the hazardous matter such as rain water, insects and the like with the first filter (204). In this one embodiment, the first filter (204) has a cylindrical shape. The first filter (204) prevents entry of large particulate matter into the air purification unit (102). The first filter (204) has a predefined mesh size. In this one embodiment the first filter (204) is has a t& predefined mesh size to filter dust particles from about PM 2.5 to about PM 10.

However, it is understood here that the shape and mesh size of the first filter (204) may vary in alternative embodiments of the present invention.

The housing (203) includes the fan unit (205) positioned at a predefined location therein. The fan unit (205) includes at least one fan positioned therein. In this one embodiment, the fan unit (205) includes two fans (206A), (206B) namely the first fan (206A) and the second fan (206B) positioned therein. The first fan (206A) and the second fan (206) are connected to the motor (207) such that the motor is positioned in between the first fan (206A) and the second fan (206B). ¾ The fans (206A), (206B) facilitate movement of the atmospheric air through the air purification unit (102). The first fan (206A) facilitates the first filter (204) to suck the atmospheric air. The second fan (206B) facilitates the semi filtered air to pass through the second filter (208). The fans (206A), (206B) are powered by the motor (207). However, it is understood here that the number and configuration of ¾ the fans (206A) and (206B) may vary in alternative embodiments of the present invention.

The fan unit (205) has the second filter (208) connected at bottom plane thereto. The second filter (208) has a predefined mesh size. In this one embodiment, the second filter (208) has a cylindrical shape and a predefined mesh

¾ size to filter dust particles of about PM 2.5 to about PM 10. However, it is understood here that the shape and the mesh size of the second filter (208) may vary in other alternative embodiments of the present invention. The first filter (204) and the second filter (208) are made up of a layered combination of materials such as Recron, SS Stripes, Cabon Infusion and the like. However, in ttl alternative embodiments, chemicals such as Triethylyne Glycol, petroleum fuel and the like may be added to the filter material for odor control, neutralization and absorption of harmful gases. The second grill (210) is configured on the housing (203) having the cylindrical shape at a predefined distance. The second grill (210) forms a bottom portion of the air purification unit (102). However, it is t& understood here that the locations and number of the filters (206A), (206B) may vary in alternative embodiments of the present invention.

Referring to FIG. 2, in operation, the air purification unit (102) sucks an atmospheric air using the first fan (206A). The atmospheric air enters the air purification unit (102) through the first filter (204) positioned inside the suction ffl, grill (202). The conical structure of the suction grill (202) avoids direct entry of rain water or hazardous matter into the air purification unit (102). The conical structure of the suction grill (202) creates pressure difference that enables faster and easy movement of air through the air purification unit (102). The first filter (204) avoids entry of hazardous particles into the air purification unit (102) ¾ thereby avoiding damage to the first fan (206A). After passing through the first filter (204), the semi filtered air passes through a second filter (208). The second filter (208) purifies and discharges the air from the air purification unit (102) through the exhaust grill (210).

The air purification unit (102) is preferably powered by a solar energy ¾ utilized by at least one solar panel (Not shown) mounted on the air purification unit (102). The air purification unit (102) may include a dangler (Not Shown) or a display (Not shown) that facilitate a visual identification of ON/OFF status of the air purification unit (102).

Referring to FIGS. 1 and 2, the air purification system (100) includes at

¾ least one pollution control unit (110) connected to the monitoring station (130).

The pollution control unit (110) includes at least one air purification unit (102). The sensor (106) in configuration with the air purification unit (102) via the microcontroller (104) and the ON/OFF controller (103) sense the level of pollution in the atmospheric air and transmits this information to the ttl microcontroller (104). In an embodiment, the system (100) includes the server (120) for central control of the system (100).The microcontroller (104) transmits these signals to the server (120) via the communication device (107). The server (120) communicates with the monitoring station (130). The server (120) has a record of predetermined levels of hazardous gases and/or dust and /or other t& pollutants present in the atmospheric air. The monitoring station (130) in configuration of the server (120) determines whether to turn ON/OFF the air purification unit (102) by matching the detected levels and the predetermined level of the hazardous gases and/or dust and /or other pollutants. On basis of the requirement, the monitoring station (130) directs the microcontrollers (104) to t l turn ON or OFF the air purification unit (102) via the ON/OFF controller (103). All the components of the air purification system (100) are configured for wired or wireless communicate with one another.

In an alternative embodiment, a plurality of pollution control units (110) are connected to the monitoring station (130) via the server (120). The plurality of

¾ pollution control unit (110) may include at least one or a plurality of air purification units (102). The second sensor (106) senses the level of pollution in the atmospheric air and transmits this information to the respective microcontrollers (104). The respective microcontrollers (104) transmit this information to the server (120) via the respective communication devices (107).

¾ The server (120) communicates with the monitoring station (130). The server (120) has a record of predetermined levels of hazardous gases and/or dust and /or other pollutants present in the atmospheric air. The monitoring station (130) decides whether to turn ON/ turn OFF the air purification units (102) by matching the detected levels and the predetermined level of the hazardous gases and/or dust

¾ and /or other pollutants by coordinating with the server (120). Accordingly, the monitoring station (130) determines number of air purification units (102) of the particular pollution control unit (110) or the number of pollution control units (110) required for keeping the pollution level in safe limits at a predefined level accordingly. On basis of the requirement, the monitoring station (130) switches ttl the respective ON/OFF controllers (103) to turn ON or OFF the respective air puri f i cati on uni ts ( 102) v i a the server ( 120) .

Referring to FIGS. 3A and 3B, an air purification unit (300) in accordance with another embodiment is shown. The air purification unit (300) includes a housing (302), a first grill (304), a first filter (306), a fan unit (308), at least one ^ fan (310), a second filter (312) and a second grill (314).

The housing (302) includes the first grill (304) positioned at one plane thereof. The first filter (306) is positioned adjacent to the first grill (304) at inner side thereof. The fan unit (308) is positioned adjacent to the first filter (306) such that the first filter (306) is sandwiched between the first grill (304) and the fan supported (308). The fan unit (308) includes at least one fan (310) positioned therein. The second filter (312) is positioned at another side of the fan unit (308) at a predefined distance therefrom. The second grill (314) is positioned at another plane of the housing (302) such that the second filter (312) is sandwiched between ¾ the fan unit (308) and the second grill (314). However, it is understood here that the number of grills (304), (314) and filters (306), (312) and configuration thereof may vary in alternative embodiments of the present invention.

In this one embodiment, the housing (302) has a rectangular profile. It is to be noted here that the profiles of the first grill (304), the first filter (306), the fan

¾ unit (308), the second filter (312) and the second grill (314) match with the profile of the housing (302). The sequential arrangement of the grills (304), (314), the fan unit (308) and the filters (306), (312) have a predefined distance therebetween. The filters (306), (312) are made up of layered combination of materials such as Recron, SS Stripes, Cabon Infusion and the like. However, in alternative

¾ embodiments chemicals such as Triethylyne Glycol, petroleum fuel and the like may be added or arranged to be circulated through the filters (306), (312) for odor control, neutralization and absorption of harmful gases. However, it is understood here that the profiles of the housing (302) and other components and material of filters (306), (312) may vary in alternative embodiment of the present invention. ttl The air purification unit (300) is preferably powered by a solar energy utilized by at least one solar panel (Not shown) mounted on the air purification unit (300). The air purification unit (300) may include a dangler (Not Shown) or a display (Not shown) that facilitate a visual identification of ON/OFF status of the air purification unit (300). t& In operation, the atmospheric air is sucked in the air purification unit (300) through the first filter (306) by operation of the fan (310). In this embodiment, three fans (310) are positioned in the fan unit (308). The fans (310) facilitate movement of air through the air purification unit (300). However, it is understood here that the number of fans (310) may vary in alternative embodiments of the invention.

The first filter (306) is covered with the first grill (304) that protects the first filter (306) from getting damaged by entry of any hazardous matter. The first

¾ filter (306) has a predefined mesh size to filter dust particles of about PM 2.5 to about PM 10. The first filter (306) prevents the entry of bigger particulates of atmospheric polluted air into the air purification unit (300). The semi filtered air then passes through the second filter (312). The second filter (312) has a predefined mesh size. In this one embodiment the second filter (312) has a

¾ predefined mesh size to filter dust particles from about PM 2.5 to about PM 10.

The second filter (312) purifies the air before passing it to the atmosphere. However, it is understood here that the mesh size of the first filter (306) and the second filter (312) may vary in alternative embodiment of the invention.

Referring to FIGS. 4A and 4B, an air purification unit (400) in accordance ¾ with yet another embodiment is shown. The air purification unit (400) includes a housing (402), a first grill (404), a first filter (406), a fan unit (408), a fan (410), a second filter (412), a second grill (414) and a scrubbing unit (415) including a container (416), a pump (418) and a tube (420).

The housing (402) has an inlet and an outlet configured at opposite sides ttl thereof. T he f i rst gri 11 (404) i s positi oned at an i nl et of the housi ng (402) . T he f i rst filter (406) is positioned adjacent to the first grill (404) at an inner side thereof. The fan unit (408) is positioned adjacent to the first filter (406) such that the first filter (406) is sandwiched between the first grill (404) and the fan supported (408). The fan unit (408) includes at least one fan (410) positioned therein. In this one t& embodiment, three fans (410) are positioned in the fan unit (408) that includes a motor (not shown). The second filter (412) is positioned at a predefined distance from the fan unit (408). However, it is understood here that number of filters (406), (412) and fans (410) may vary in alternative embodiments of the invention. The second grill (414) is positioned at an outlet of the housing (402) such that the second filter (412) is sandwiched between the fan unit (408) and the second grill

(414) . However, the first grill (404) and the second grill (414) may cover the sides of the air purification unit (400) completely or partially.

In accordance with this embodiment at least one filter (406), (412) is ¾ equipped with the scrubbing unit (415). The scrubbing unit (415) includes the container (416), the pump (418) and the tube (420). The container (416) is positioned at bottom plane of the filter (406), (412). The filter (406), (412) has the pump (418) position at an upper plane thereof. The container (416) is connected to the pump (418) by the tube (420). In this one embodiment, the scrubbing unit ¾ (415) is connected to the second filter (412). However, it is understood here that the number of filters may vary in alternative embodiments and the scrubbing unit

(415) may be connected to at least one or all the filters of the air purification unit (400).

In this one embodiment, the housing (402) has a rectangular profile. It is to ¾ be noted here that the profiles of the first grill (404), the first filter (406), the fan unit (408), the second filter (412) and the second grill (414) match with the profile of the housing (402). The sequential arrangement of the grills (404), (414), the fan unit (408) and the filters (406), (412) have a predefined distance therebetween. The filters (406), (412) are made up of layered combination of materials such as ttl Recron, SS Stripes, Cabon Infusion and the like. However, it is understood here that the profiles of the housing (402) as well of other components and material of filters (406), (412) may vary in alternative embodiment of the present invention.

The air purification unit (400) is preferably powered by a solar energy utilized by at least one solar panel (Not shown) mounted on the air purification t& unit (400). The air purification unit (400) may include a dangler (Not Shown) or a display (Not shown) that facilitate a visual identification of ON/OFF status of the air purification unit (400).

In operation, the atmospheric air is sucked inside the air purifier unit (400) by the first filter (406) by operation of the fan (410). The first filter (406) is covered with the first grill (404) that protects the first filter (406) from getting damaged by entry of any hazardous matter such as large dust particles, insects and the like. The first filter (406) has a predefined mesh size to filter dust particles of about PM 2.5 to about PM 10. The first filter (406) prevents the entry of bigger ¾ particulates of atmospheric polluted air into the air purification unit (400). The semi filtered air then passes through the second filter (412).

The second filter (412) has a predefined mesh size. In this one embodiment, the second filter (412) has a predefined mesh size to filter dust particles of about PM 2.5 to about PM 10. The second filter (412) filters the air

¾ before passing it to the atmosphere. In this one embodiment, the scrubbing unit (415) is attached to the second filter (412) that facilitates a chemical to flows over the second filter (412). As the polluted air passes through the second filter (412), the harmful elements and dust particles in the polluted air react with the chemical flowing through the second filter (412). The chemical such as Tri ethylene Glycol

¾ dissolves the harmful component of the gases and releases the clean air having oxygen in the atmosphere. The circulation of the chemical through the second filter (412) is facilitated by the pump (418). The residual chemical collected in the container (416) is re-circulated to the pump by the tube (420). However, it is understood here that the mesh size of the first filter (406) and the second filter ttl (412) and the chemi cal may vary i n alternative embodi ment of the i nventi on.

Referring to FIGS. 5A, 5B and 5C, an air purification unit (500) in accordance with further embodiment of the present invention is shown. The air purification unit (500) includes a housing (502), a first grill (504), a second grill (506), a fan unit (508), at least one slot (509), at least one fan (510), a first filters *fc (512A), (512B) and a second filters (514A), (514 B).

The housing (502) has an inlet and an outlet. The first grill (504) is connected at inlet and the second grill (506) is connected at an outlet of the housing (506). The fan unit (508) having a predefined shape is positioned inside the housing (502). The fan unit (508) facilitates positioning of at least one fan (510) in the slot (509) configured thereon. The fan unit (508) facilitates attachment of the first filters (512A), (512B) and the second filters (514A), (514B) at predefined locations configured thereon.

In this one embodiment, the housing (502) includes a hollow rectangular ¾ box having opposite sides open. The first grill (504) is attached at a first open side of the housing (502) thereby restricting entry of any hazardous matter into the air purification unit (500). The second grill (506) is attached at a second open side of the housing (502) thereby restricting entry of any hazardous matter into the air purification unit (500). It is understood here that the profiles of the first grill (504) ¾ and the second grill (506) match with the profile of the housing (502).

The fan unit (508) having a predefined shape is positioned inside the housing (502). In this one embodiment, the fan unit (508) has a zigzag shape. The fan unit (508) comprises two zigzag plates namely a first plate (508A) and a second plate (508B) and a third plate (508C). The first plate (508A) and the

¾ second plate (508B) having a predefined distance therebetween are connected to the third plate (508C) at a predefined angle. In an alternative embodiment, the first plate (508A) and the second plate (508B) are connected to the third plate (508C) such that the fan unit (508) defines a venture shape that creates a pressure difference in the air purification unit (500) thereby facilitating easy movement of ttl atmospheric air through the air purification unit (500). However, it in understood here that shape of the fan unit (508) may vary in alternative embodiments of the invention.

The zigzag profile includes at least one slot (509) configured thereon in order to facilitate positioning of at least one fan (510). In this one embodiment, t& the fan unit (508) includes five slots (509) configured at predefined locations thereon. The fan unit (508) includes at least one motor (not shown). The first plate (508A) and the second plate (508B) include two circular slots (509) respectively configured thereon. The third plate (508C) includes one circular slot (509) configured thereon. Each slot (509) includes at least one fan (510) connected therein. However, it in understood here that shape and number of the slots (509) and the fans (510) may vary in alternative embodiments of the invention.

The fan unit (508) facilitates attachment of at least one first filter (512) and at least one second filter (514) thereon. In this one embodiment, the fan unit (508)

¾ accommodates two first filters (512A), (512B) and two second filters (514A), (514B). The first filters (512A), (512B) are attached on an inner side of the fan unit (508). The first filter (512A) is attached on an inner side of the first plate (508A) upto a predefined length and the first filter (512B) is attached on an inner side of the second plate (508B) upto a predefined length such that the first filters

¾ (512A), (512B) are positioned facing opposite to one another. Each first filter (512A), (512B) has at least one fan (510) adjacently positioned at an outer side thereof thereby facilitating suction of the atmospheric air by the first filters (512A), (512B). The first filters (512A), (512B) have mesh size of about PM 2.5 to about PM 10.

¾ The second filters (514A), (514B) are attached on an outer side of the fan unit (508). The second filter (514A) is attached on an outer side of the first plate (508A) and the second filter (514B) is attached on an outer side of the second plate (508B) such that the second filters (514A), (514B) are positioned facing opposite to one another. Each second filter (514A), (514B) has at least one fan ttl (510) adjacently positioned at an inner side thereof that facilitates exhaust of the semi filtered air through the second filters (514A), (514B). The second filters (514A), (514B) remove bad odor, voc and carbon content from the semi filtered air. The second filters (512A), (512B) have a predefined mesh size to filter dust particles of about PM 2.5 to about PM 10. The filters (512A), (512B), (514A), t& (514B) are made up of layered combination of materials such as Recron, SS Stripes, Cabon Infusion and the like. However, in alternative embodiments chemicals such as Triethylyne Glycol, petroleum fuel and the like may be added for odor control, neutralization and absorption of harmful gases. However, it is understood here that the number, mesh size and configuration of the first filters (512A), (512B) and the second filters (514A), (514B) may vary in alternative embodiments of the present invention.

The air purification unit (500) is preferably powered by a solar energy utilized by at least one solar panel (Not shown) mounted on the air purification ¾ unit (500). The air purification unit (500) may include a dangler (Not Shown) or a display (Not shown) that facilitate a visual identification of ON/OFF status of the air purification unit (500).

In operation, the atmospheric air enters the air purification unit (500) through the first grill (504). The first grill (504) prevents the entry of hazardous ¾ matter such as bigger dust particles, insects, rain water and the like in the air purification unit (500). The air is filters by the first filters (512A), (512B) and the semi filtered air passed to the second filters (514A), (514B). The second filters (514A), (514B) facilitate further filtration of the air and the filtered air is forced out of the air purification unit (500) through the second grill (506).

¾ Referring to FIGS. 1 to 5C, the pollution control unit (110) may include either one and/or in combination of the types of air purification units as per the requirement. The air purification system (100) may implement at least one pollution control unit (110) having at least one type of air purification units (102), (400), (300), (500) or combinations thereof. However, the air purification units ttl (102), (400), (300), (500) may be implemented without the communication device (107), server (120) and/or the monitoring station (130). The filters of the air purification units (102), (300), (400), (500) are cleaned within 10 to 21 days. This period is determined based on the location of installation of the air purification units (102), (300), (400), (500). The first sensor (105) detects the dust t& accumulation in the filters of the air purification units (102), (300), (400), (500) and communicates the information to the microcontroller (104). The filters are cleaned or replaced manually according to the signals received by the mi crocontrol I er ( 104) by operati on on the f i rst sensor ( 105) . The air purification system (100) reduces the atmospheric pollution to a predefined safe level in a minimum cost. The air purification system (100) saves energy by determining the exact number of air purification units (102) required to maintain pollution level under control. The air purification system (100) includes ¾ air purification units (102) that are compact which reduce the space required for installation. The system (100) of the present invention eliminates the use of costly filters and equipments for movement of air inside the air purification unit (102) for purification of air.

¾ Examples:

Hereinafter, the present invention will be described in more detail based on examples. The examples are not intended to limit the scope of the present invention. It is believed the invention will be better understood from the following detailed examples:

¾ Referring to FIG.6, the air purification units were placed in some regions of Maharashtra. Twenty air purification units were placed in the area of around 60 Sq. feet radius dome for duration of 3 months. It was concluded after the calculations that the average pollution level was decreased by 46.83 % in that area. ttl A fter compl eti on of above sai d peri od, the readi ngs were taken at i nl et and an outlet of each air purification unit (102). The filter that was positioned at an inlet had captured 174 mg/m 3 of PM 2.5 and 234.7 mg/m 3 of PM 10 of polluted atmospheric air. The filter that was positioned at an outlet of the air purification unit (102) had captured 091.9 mg/m 3 of PM 2.5 and 097.5 mg/m 3 of PM 10 of t& filtered atmospheric air. It was concluded from these readings that each air purification unit (102) had reduced the concentration of PM 2.5 by 52% and 10 P M by 41 % i n the pol I uted atmospheri c ai r. The embodiments of the invention shown and discussed herein are merely illustrative of modes of application of the present invention. Reference to details in this discussion is not intended to limit the scope of the claims to these details, or to the figures used to illustrate the invention.

It is understood that various omission and substitutions of equivalents are contemplated as circumstance may suggest or render expedient but such are intended to cover the application or implementation without departing from the scope of the present invention