Title:
PORTABLE SPLIT-TYPE FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/040159
Kind Code:
A1
Abstract:
A portable split-type filter device, comprising a protective face mask (10) having a cavity, a filter main unit (20), and an intake hose (30) and an exhaust hose (40) which are connected between the protective face mask (10) and the filter main unit (20), wherein the filter main unit (20) comprises an intake filter component (22) for filtering the air in the intake hose (30) and an exhaust filter component (23) for filtering the air in the exhaust hose (40); the protective face mask (10) is provided with a bracket component, which accommodates a voice receiving component for recording a user's voice and is provided with a sound transmission region for transmitting the user's voice, the sound transmission region being arranged corresponding to the voice receiving component; and the filter main unit (20) is further provided with a sound production component that is in communication connection with the voice receiving component.
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Inventors:
LIU YANLING (CN)
LIU BAIFAN (CN)
LIU YANYI (CN)
LIU BAIFAN (CN)
LIU YANYI (CN)
Application Number:
PCT/CN2022/073034
Publication Date:
March 23, 2023
Filing Date:
January 20, 2022
Export Citation:
Assignee:
HONGRIJIA DEPURATE FACILITY SCIENCE & TECH CO LTD (CN)
International Classes:
B01D46/00; H04B1/3827; H04R1/08; H04R1/20; H04R27/04
Foreign References:
| CN111375250A | 2020-07-07 | |||
| CN2933465Y | 2007-08-15 | |||
| CN108420133A | 2018-08-21 | |||
| CN107854785A | 2018-03-30 | |||
| CN205831141U | 2016-12-28 |
Attorney, Agent or Firm:
PROMISE-U LAWFIRM OF GUANGDONG (CN)
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