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Title:
FILTERING LAYER FOR AIR PURIFICATION DEVICE AND AIR PURIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/072151
Kind Code:
A1
Abstract:
A filtering layer for an air purification device, comprising a first filtering layer (301) and a second filtering layer (302). The first filtering layer (301) and the second filtering layer (302) are provided with wavy fold straight lines formed by continuously forward and backward folding a fiber material containing a flocculent structure. The texture of the fold straight lines of the first filtering layer (301) and the texture of the fold straight lines of the second filtering layer (302) are arranged at different angles or directions.

Inventors:
LAW SUI CHUN (CN)
Application Number:
PCT/CN2018/109384
Publication Date:
April 18, 2019
Filing Date:
October 09, 2018
Export Citation:
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Assignee:
LAW SUI CHUN (CN)
International Classes:
B01D46/00; F24F1/02
Foreign References:
CN106457110A2017-02-22
JPH09290116A1997-11-11
CN205481418U2016-08-17
CN201612874U2010-10-27
CN106855273A2017-06-16
CN105783127A2016-07-20
CN2873311Y2007-02-28
JP2017064702A2017-04-06
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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