Air supply and ventilation multi-purpose protective mask and air supply device

Abstract

The invention innovatively designs an air supply and ventilation protective mask. A miniature air supply fan is installed adopting a combined plug connection manner, and is externally connected with aportable mobile power supply to obtain electric power driving operation, the air in a mask shell is driven to flow, at the same time, the air impedance is overcome to the maximum extent, and multiple-layer or thickened air filters, namely the air inlet filter plate and the air outlet filter plate, is adapted to enhance the filtering protection function. Moreover, the mask shell does not directlycontact the face of a user, so that the user can breathe more smoothly and easily, moisture is taken away by the airflow, air filters away from the mouth nose of the user cannot be wetted, wearing ismore comfortable, and the protection is more safe and long-acting. According to the air supply and ventilation protective mask, by assembling an upper cover plate, a lower cover plate and goggles, theair filter plates are replaced and renewed to block the invasion of harmful air, substances or infectious viruses to the human body, and multiple safety and health protection are realized; and the air supply and ventilation protective mas can also be used by removing components such as the goggles, the air filters, sealing strips and the air supply fan. The air supply and ventilation protective mask has the characteristics of multi-scene application and reuse.

Description

technical field [0001] The invention relates to a protective appliance, in particular to a multipurpose protective mask for air supply and ventilation and an air supply 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 c...

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

[0003] At the same time, the existing masks or face shields, while effectively shielding harmful gases, substances or germs, have a good protective effect, but also face the obvious defects of large air resistance and poor wearing experience

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