Photocatalyst mask

Abstract

The invention discloses a photocatalyst mask and belongs to the field of protective masks. The photocatalyst mask comprises a self-operated air storage mechanism, a replaceable photocatalyst filter layer and a one-way exhaust mechanism, wherein the self-operated air storage mechanism comprises an air bag; three openings are formed in the air bag; the first opening communicates with an air inlet duct, the second opening communicates with an air inlet passage and the third opening communicates with a sliding block channel; one end of the sliding block channel communicates with the air bag and the other end communicates with an exhaust channel; a spring is arranged in the sliding block channel; one end of the spring is fixedly arranged on the exhaust channel and the other end is connected with a sliding block; an O-shaped seal ring is arranged on the excircle surface of the sliding block. A harmful gas is fully degraded in the honeycomb photocatalyst filter layer when the photocatalyst mask is used, so that the blocking feeling of a user during breathing is relatively small; a one-way valve is adopted for inspiration and exhausting, so that mixing of inspiration and exhausting is prevented and the possibility of cross contamination is reduced; dustproof cotton cloth on the outer layer can be independently dismantled for cleaning, so that the service life of the honeycomb photocatalyst filter layer is prolonged and the photocatalyst mask has relatively high practicability.

Description

technical field [0001] The invention belongs to the field of protective masks, in particular to a photocatalyst mask. Background technique [0002] Photocatalyst is a general term for a photo-semiconductor material with photocatalytic function represented by nano-scale titanium dioxide. It is coated on the surface of the substrate, and under the action of ultraviolet light, it produces a strong catalytic degradation function: it can effectively degrade toxic substances in the air. Harmful gas; can effectively kill a variety of bacteria, and can decompose and harmlessly treat the toxins released by bacteria or fungi; it also has the functions of removing formaldehyde, deodorizing, anti-pollution, and purifying air. [0003] At present, there are two main problems with photocatalyst masks on the market. On the one hand, compared with ordinary masks, photocatalyst masks have a finer filter layer, which can ensure that toxic substances in the air can fully contact with photocata...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main problems with photocatalyst masks on the market. On the one hand, compared with ordinary masks, photocatalyst masks have a finer and finer filter layer, which can ensure that the toxic substances in the air can fully contact with the photocatalyst. It plays the role of disinfection, but the fine filter eyes often cause the user to have difficulty breathing; on the other hand, because the ordinary mask adopts an integrated structure, the catalytic coating will decompose when it contacts water during cleaning, which will reduce the detoxification effect

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