An air curtain protection mouth mask

Abstract

An air curtain protection mouth mask comprises a lithium ion battery (1), an air pump (2), an air filter (3), an air flow curtain face mask (4), a front end air conveying pipe (5) and a rear end air conveying pipe (5A). The air pump (2) is connected with the air filter (3) via the front end air conveying pipe (5), and the air filter (3) is connected with the air flow curtain face mask (4) via the rear end air conveying pipe (5A). An air flow curtain face mask outer side sealing isolation layer (4-1) is made of nylon taffeta fabric and an air flow curtain face mask inner side breathable isolation layer (4-2) is made of pure cotton spunlace cloth; a cavity air duct (4-3) is between the air flow curtain face mask outer side sealing isolation layer (4-1) and the air flow curtain face mask inner side breathable isolation layer (4-2). Clean air filtered by the air filter (3) exchanges with exhaled air in the cavity air duct (4-3). The air flow curtain face mask can reduce carbon dioxide reinhalation during breathing of people.

Description

technical field [0001] The invention relates to a wearing protection technology, in particular to an air curtain protective mask. Background technique [0002] Air pollution and infectious disease emergencies occur frequently, which pose a great threat to people's life and health. To reduce the impact of air pollution on health and block the spread of infectious diseases in the air, how to reduce air pollution and diseases through personal wear protection The impact of infectious sources on human health has become a very important topic today. For air pollution, most of the existing public protection technologies adopt gauze filter masks. However, there are not only particles in the smog, but also harmful gases such as hydrogen sulfide. It is difficult to use gauze filter masks to achieve protective effects in smog weather. According to literature records, the material room of Beijing Medical Device Inspection Institute once conducted airtightness experiments on several ma...

AI Technical Summary

Problems solved by technology

[0008] For the existing personal protective masks, they can only block particles with a diameter greater than 4 μm. In haze weather, the effect on blocking fine particles is very limited. It is difficult to ensure the effectiveness of the protection against infectious diseases. The existing masks still have a stagnation area. Carbon dioxide retention problem, the purpose of the invention is to overcome the above-mentioned shortcoming, proposes a kind of air curtain protective mask

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