Breathing mask with filter and purification function



The invention discloses a breathing mask with a filter and purification function. The breathing mask comprises a mask and a canister; the mask comprises a mask body, an eye window, an interphone, a breathing flygate and a fastening component. The breathing mask is characterized by further comprising a double-layer breathing valve and a multi-layer breathing valve which is formed by connecting two or more breathing valve plates in series; a grating is arranged between every two adjacent breathing valve plates as well as between one breathing valve plate and the mask body; an air inlet is formed in the bottom part of the mask body; the air inlet is connected with the canister through an air guide tube; and the canister comprises a first adsorption component, a catalysis component and a second adsorption component which are superposed from front to back. By adopting a catalyst, the content of benzene, methylbenzene, dimethylbenzene, ethylbenzene, styrene, formaldehyde, acetaldehyde and acrolein in the air in a building can be reduced to be smaller than 0.05 mg/m<3>, and meanwhile, the content of microorganisms in circulation air is obviously reduced.




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