Title:
PERSONAL AIR FILTER DEVICE WITH IMPROVED STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2017/070879
Kind Code:
A1
Abstract:
Disclosed is a personal air filter device worn over the nostrils, comprising a filter housing (1), a control unit (2) and a filtering unit (3), wherein the filter housing (1) is hollow inside to form an accommodation cavity (111), and is provided with an air inlet hole (100) and an air outlet hole (110) in communication with the accommodation cavity (111); the control unit (2) is arranged inside the accommodation cavity (111), at least comprises an air outlet control valve (21), and forms an airflow inlet channel (101) and an airflow outlet channel (103) with the air inlet hole (100) and the air outlet hole (110) respectively inside the accommodation cavity (111); the filtering unit (3) is arranged inside the airflow inlet channel (101); and the filter housing (1) is provided with a breathing pipe (12) corresponding to human nostrils, and the breathing pipe (12) is in communication with the accommodation cavity (111) and located between the airflow inlet channel (101) and the airflow outlet channel (103).
More Like This:
| WO/1997/033652 | IMPROVED SURGICAL MASK WITH ADHESIVE STRIP TO IMPROVE BREATHING |
| WO/2006/127031 | CHEEK-MOUNTED PATIENT INTERFACE |
Inventors:
CHENG CHUN-CHENG (CN)
Application Number:
PCT/CN2015/093164
Publication Date:
May 04, 2017
Filing Date:
October 29, 2015
Export Citation:
Assignee:
KUANTECH (BEI HAI) CO LTD (CN)
International Classes:
A62B7/10; A62B9/02; A62B9/06; A62B23/06
Domestic Patent References:
| WO2003047699A1 | 2003-06-12 |
Foreign References:
| CN205108802U | 2016-03-30 | |||
| CN103933684A | 2014-07-23 | |||
| CN203816110U | 2014-09-10 | |||
| CN201263856Y | 2009-07-01 | |||
| CN2624970Y | 2004-07-14 | |||
| CN203971223U | 2014-12-03 |
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (CN)
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