Reverse filtering mask and self-cleaning method

Abstract

The invention relates to a reverse filtering mask and a self-cleaning method. The reverse filtering mask comprises a mask base body and binding belts connected to the two ends of the mask base body and are used for conducting fixing; the mask base body at least covers the oral and nasal areas of a user, and annular plastic nasal strips are connected to edges in cavity shapes of the mask base body; the mask base body is provided with a respiration valve; a metal filtering net and several protection filtering layers are arranged below the mask base body; several longitudinal diversion grooves are formed in the inner wall of the cavity of the mask base body, and the lower ends of the longitudinal flow diversion grooves are converged to a drainage groove; the drainage groove is communicated with the metal filtering net, and a hydrophilic polymer membrane is arranged at the junction. By means of the reverse filtering mask and the self-cleaning method, filtered particles and dusts easily fall off, the inside of the mask cannot get humid and thus water cannot be accumulated in the mask, the mask has a self-cleaning function, all constituent parts are convenient to clean or replace, and the reverse filtering mask is comfortable to wear and good in protection effect.

Description

technical field [0001] The invention belongs to the technical field of respiratory protection devices and respiratory masks, and in particular relates to a reverse filter mask and a self-cleaning method. Background technique [0002] With the intensification of environmental pollution, the air quality is getting worse and worse, and haze weather often appears, which seriously affects people's health, and people pay more and more attention to their health. In view of the current situation of poor air quality, The most direct way people take is to wear masks. Masks are designed to protect people's health. They are used to filter visible or invisible substances that are harmful to the human body. When the air quality is poor, when respiratory infectious diseases are prevalent, and when working in dusty and other polluted environments, it is necessary to wear a mask. Has a very good effect. Therefore, masks are used more and more frequently in people's daily work and life. ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a reverse filter mask and a self-cleaning method, so as to prevent the particle dust filtered by the mask from falling easily, and the mask is prone to wet water, and the mask filters particles The problem of frequent cleaning or one-time use only after the dust is dirty

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