Multi-purpose protective mask and filtering, ventilating and air interchanging device

Abstract

The invention discloses a multi-purpose protective mask. Through airtight protecting of a mask shell and air filtering through replaceable filter pieces, the harmful air, micro-particles or infectiousviruses are efficiently blocked from invasion of a human body, meanwhile, through a front blocking shield plate and cooperation with goggles, the harmful substances such as the infectious viruses, the micro-particles and the like are shielded and prevented from diffusing and propagating and cross infection in the crowds, and multiple safety and health protection are achieved; the invention further innovatively designs a filtering, ventilating and air interchanging device, the device is installed in a combined inserting mode, air changing paddles are driven to supply the air and change the airthrough an external battery box power, air flow in the mask shell is enhanced, the influence of the air impedance force caused by a protective device and a filtering material on the breathing of a user is reduced to the greatest extent, and meanwhile, the replaceable filter pieces can be exchanged, installed or detached, so that dust prevention and haze prevention can be realized and the safety health protection can be more effectively and safely realized, the mask can be used for the sun blocking, wind proofing and warm keeping in daily life, has the characteristics of multi-scene application and can be repeatedly used.

Description

technical field [0001] The invention relates to a protective appliance, in particular to a multi-purpose protective mask and a filtering ventilation device. Background technique [0002] Masks are very common in our daily life. In addition to using masks to keep warm and prevent dust and haze in winter and when environmental pollution is severe, there are also special or more professional medical masks that can effectively prevent the spread of viruses, especially in During the flu outbreak season and the epidemic spread of sudden infectious diseases, the use of masks is huge, even in short supply. When the above various masks are used, they mainly cover people's faces to prevent cold wind, dust, harmful air and micro particles or viruses from invading the body through people's oral cavity or nasal cavity, which is harmful to health. However, the existing anti-dust and anti-virus masks are basically discarded after one-time use. Although wearing a mask covers more than half...

AI Technical Summary

Problems solved by technology

However, most of the existing protective mask products have the problems of complex structure, inconvenient wearing, single function, limited use, and high manufacturing cost and sales price, especially various professional protective masks. The appearance and shape are weird, which is inconsistent with people's daily work and travel environment. It is very incongruous, which has caused people's repulsion. Non-professional work needs and special scene requirements. Ordinary people do not accept the choice of protective masks as a substitute for masks. work in daily life

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