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1. (WO2018023889) MASK

Pub. No.:    WO/2018/023889    International Application No.:    PCT/CN2016/104525
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Sat Nov 05 00:59:59 CET 2016
IPC: A62B 9/06
Inventors: ZHANG, Wendong
Title: MASK
A mask, comprising: a filter mesh, an air intake valve (2), an air outlet valve (3), and a support body; the support body comprises a support frame (41) and an inner wall (42); the filter mesh covers the outer surface of the support frame (41), a first through hole used for embedding the air outlet valve being disposed on the filter mesh; and a second through hole used for embedding the air intake valve is disposed on the inner wall (42), the filter mesh covering the surface of the air intake valve (1). The present mask solves the technical problem of the reduced PM 2.5 filtration rate and service life of masks caused by the impact on the filter mesh particulate adsorption rate of most PM 2.5 masks in the prior art getting wet during continuous breathing as a result of using electrostatic electret filter meshes.