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Matches 551 - 600 out of 24,002

Document Document Title
WO/2021/244467A1
Disclosed are an air purification assembly having a coronavirus killing function and an application thereof. The air purification assembly comprises a first support layer, a second support layer, and a functional material layer disposed ...  
WO/2021/245080A1
The present invention relates to a hollow filter candle (1) which has, via impregnation of the inside with a catalyst solution, a concentration gradient of catalyst metals from the inside to the outside across the wall thickness thereof....  
WO/2021/237679A1
A bacterial cellulose-based air filter screen and a use. The bacterial cellulose-based air filter screen is of a three-layer structure, i.e., a layer of bacterial cellulose-based filter screen is sandwiched between two layers of polymer ...  
WO/2021/239663A1
Method of treating a textile article by impregnation with a water dispersion of graphene nano- platelets in an impregnation bath comprising also a polymeric binder and an anti-migration and wetting agent. Graphene is fixed in the textile...  
WO/2021/237326A1
The present invention relates to an antiviral and/or antibacterial fabric filter, and also to the use thereof as a filter element and retainer and as an antiviral and/or antibacterial agent. The present invention also relates to a method...  
WO/2021/240450A2
The invention relates to the filter insert, specifically, the filter insert (1) for filtration of liquids and/or gases, comprising at least one filter layer (3) containing at least one electro-conductive layer (2) to resist heating of th...  
WO/2021/239451A1
The invention provides a respirator mask (1) comprising a filter material piece (2) made of an air-permeable material and at least one securing band (3), wherein the air-permeable material comprises at least one layer of a non-woven fabr...  
WO/2021/239452A1
The invention provides a respirator mask comprising a filter material piece made from an air-permeable material and at least one securing band, wherein the air-permeable material comprises at least one layer of a non-woven biodegradable ...  
WO/2021/241367A1
The problem to be solved by the present invention is providing a friction-charging nonwoven fabric in which two or more types of fibers having differing constituent resins are mixed, the nonwoven fabric being thin and having superior str...  
WO/2021/239313A1
The invention provides a respirator mask comprising a filter material piece made of an air-permeable material and at least one securing band, wherein the air-permeable material comprises at least one layer of a non-woven fabric and the a...  
WO/2021/242802A1
Filter media, including those suitable for hydraulic, fuel, HVAC, HEPA, and/or other applications, and related methods are provided. In some embodiments, a filter media described herein may include a layer (e.g., a fine fiber layer) comp...  
WO/2021/242020A1
The present invention relates to a method for manufacturing a filter having antibacterial and antiviral efficacy through ion coating. The present invention may comprise the steps of adding an ion stabilizer to copper ions (Cu2+) to prepa...  
WO/2021/239659A1
Textile article comprising a textile substrate to which graphene is applied in an amount from 0.5 to 20 g of graphene per square meter of textile substrate, wherein said graphene is dispersed in a polymeric binder and forms a thermal cir...  
WO/2021/239328A1
The invention provides a respirator mask (1) comprising a filter material piece (2) made of an air-permeable material and at least one securing band (3), wherein the air-permeable material comprises at least one layer of a non-woven fabr...  
WO/2021/235828A1
Disclosed are a system for managing an air purifier equipped with a composite filter, and an operation method thereof. A system for managing an air purifier equipped with a composite filter, according to one embodiment of the present dis...  
WO/2021/234659A1
The disclosure relates to a nonwoven fabric including at least one layer of an electrostatically-charged elastomeric meltblown nonwoven material, the meltblown nonwoven material including at least 90% by weight of at least one elastomer,...  
WO/2021/235686A1
A water purifier filter and a water purifier comprising same, according to the present invention, comprise: a filter housing including an inlet and an outlet; and a filter module which is provided inside the filter housing to purify the ...  
WO/2021/234946A1
The purpose of the present disclosure is to provide methods for safely producing an air filter medium and an air filter that achieve improved filtering performance, in particular, particle capturing performance. An air filter medium prod...  
WO/2021/235687A1
The present invention relates to a water purifier filter and a water purifier comprising same, wherein the water purifier filter comprises: a filter housing provided with an inlet and an outlet; and a filter module provided inside the fi...  
WO/2021/235116A1
A filter according to the present invention comprises: a filter base portion which has a first main surface and a second main surface on the reverse side from the first main surface, in which a plurality of through holes communicating th...  
WO/2021/235669A1
A carbon dioxide capturing agent according to an embodiment of the present invention comprises: a fluid; a carbon dioxide chemical absorbent dispersed in the fluid; and a protective film containing a plurality of nanoparticles surroundin...  
WO/2021/237027A1
A system for forming a hollow modular candle filter includes: a first filter portion having at least one open end; a hollow second filter portion having at least one open end; a sleeve configured to fit within the open end of the first f...  
WO/2021/235903A1
Provided is an antiviral filter medium. An antiviral filter medium according to an example of the present invention includes a first member that comprises an antiviral coating layer composed of fibers and having, on the entirety or a por...  
WO/2021/235827A1
Disclosed are an air purifier management system and an operation method thereof. The operation method of an air purifier management system according to an embodiment of the present invention may comprise the steps of: relaying, by a dong...  
WO/2021/235688A1
A filter for a water treatment device according to the present invention comprises an electrode part comprising: a plurality of activated carbon electrodes, each of which has a plate shape and includes a current collector and activated c...  
WO/2021/231695A1
A filtration media including at least a first nonwoven fabric having at least one meltblown layer in provided. The at least one meltblown layer includes a plurality of meltblown fibers having an average diameter from about 1 to about 5 m...  
WO/2021/228792A1
The present invention relates to a filter element used for trapping one or more gaseous pollutants chosen in particular from NOx, SO2, aldehydes and ketones, the filter element comprising at least one DES having a melting point greater t...  
WO/2021/231114A1
Sulfonated polystyrene fibers having an average diameter from 450 nm to 2000 nm and a capacity from 0.05 meq/g to 2.0 meq/g.  
WO/2021/229925A1
The present invention addresses the problem of providing: a filtration material for an immersion-type filtration cartridge, the filtration material having not only exceptional collection performance but also a high processing quantity wi...  
WO/2021/230118A1
A columnar honeycomb structure having: a peripheral wall; and a porous partition wall that is provided inside the peripheral wall and forms a plurality of partitioned cells penetrating from one end face to another end face to form flow p...  
WO/2021/229444A1
The novel and improved face mask materials with inherent virucidal activity not onlyreduces/nullifies the viral load via inhalation, but reduces the transmission from both the inhalation and contact routes by contributing to good hygieni...  
WO/2021/224820A1
An air filtering fabric, comprising: a first layer (1), formed by a plurality of weft threads, parallel to a weft direction (X), and a plurality of warp threads, parallel to a warp direction (Y); a second layer (2), formed by a plurality...  
WO/2021/225335A1
Disclosed is an oil-water separation apparatus. The oil-water separation apparatus may comprise: an oil-water separation filter assembly including at least one oil-water separation filter through which water passes and which filters out ...  
WO/2021/225819A2
An article of personal protective equipment. The article has an external side for facing side the environment and an internal side for facing the body of a user. The article is air permeable but has a porosity sufficient to entrap and th...  
WO/2021/224115A1
The invention relates to a filter on the basis of a nonwoven composite material and to a method for producing such a nonwoven composite material by electrospinning. The invention further relates to the use of such a filter for filtering ...  
WO/2021/226049A1
Articles and methods relating to filter media are generally provided. In some embodiments, a filter media has an irregular surface structure. For instance, the filter media may comprise a plurality of peaks that are irregular in one or m...  
WO/2021/226639A2
An assembly is for attracting and neutralising contaminants from air. It comprises a substrate and a graphite solution; wherein the substrate is treated with the graphite solution. The assembly further comprises ionising means configured...  
WO/2021/224773A1
Face mask (1) for filtering microbial loads and suspended particles comprising a thinned support (2), which is provided with an external face (3) and with an internal face (4) and is intended to cover a part of the face of a user, and a ...  
WO/2021/222131A1
Fabrics, such as employed in air filters, facemasks, garments, or PPE, are coated with pathogen-binding agents, such as chemicals that bind to protein- encapsulated airborne pathogens. Some of these pathogen-binding agents include multif...  
WO/2021/219860A2
A removable filtration system for use in a respiratory mask device has a filter media having a three-dimensionally contoured form to fit over the face of a wearer; and a filter support joined to the filter media along at least a portion ...  
WO/2021/217235A1
The invention discloses a fiber filament non-woven fabric with a small pore size and a large porosity, which adopts an island type ultra-fine fiber single filament, which is juxtaposed into an unidirectional silk layer several times, and...  
WO/2021/220720A1
The present invention provides a depth filter which contains fine particles and coarse particles, and which exhibits excellent filtration accuracy with respect to a high concentration fluid and/or a high viscosity fluid. This depth filte...  
WO/2021/220530A1
Provided is a filter molded body for a gas generator, the filter molded body comprising: a circumferential wall part that has a hollow cylindrical shape, and is formed by a wound body of filter wires on which a groove is formed at one lo...  
WO/2021/219882A1
The present invention relates to respiratory mask device and a reusable filtration system for use therein. In particular, the respiratory mask device includes a face gasket, a removable filtration system, and an outer covering removably ...  
WO/2021/220114A1
Invention relates to filters capable to filter and absorb heat generated during activation of fire suppressing gas generating devices. A filtering and heat absorbing filter comprises at least the following layers: an inner layer of a ste...  
WO/2021/221027A1
There is a need to realize a long-filter-lifetime filter member which is for a slurry liquid having a high viscosity and a high solid component ratio. This need is met by a filter member for filtering a slurry liquid in which a net and a...  
WO/2021/221534A1
The invention relates to the field of mechanical engineering, and more particularly to filter elements for use in filters for purifying liquid or gaseous media. Proposed is a filter element configured in the form of a solid of revolution...  
WO/2021/214498A2
The present invention relates to nanofilters and nanofliter systems for personal and health care protective equipment to protect against health and safety hazards having application in healthcare, industrial, public, domestic environment...  
WO/2021/216540A1
A filter or mask structure, comprising a first face layer comprising a polymer and having a face basis weight, a second outer layer comprising a polymer and having an outer basis weight less than 34 gsm, and a third outer layer comprisin...  
WO/2021/215205A1
The purpose of the present invention is to provide a porous ceramic laminate with which it is possible to reduce pressure loss of a fluid. The present invention is a porous ceramic laminate having a first porous layer and a second porous...  

Matches 551 - 600 out of 24,002