Active air feeding type dustproof mask

Abstract

The invention discloses an active air feeding type dustproof mask which comprises a mask body and a binding band, wherein the mask body is communicated with an air purifying device through an air feeding pipe; the mask body is fixedly arranged on the head of a human body by the binding band; the mask body is of a hollow sandwich structure; the periphery part, which is in contact with the human body, of the inner surface of the mask body is flexibly arranged; the mask body is matched and sealed with a human face in shape from the aspect of anatomy; a middle part of the mask body is a rigid orifice plate which is protruded forwards; a breathing space communicated with the hollow sandwich through air is formed between the rigid orifice plate and the front side of a respiratory organ of a person in the anatomy; two ventilation holes which are respectively communicated with the outside and the air purifying device and are opposite to each other are formed in the hollow sandwich. By using the hollow sandwich structure arranged in the mask, purified air forms a clean air curtain at the front parts of the mouth and the nose of the person; the clean air curtain can provide clean air for the breathing of the person; meanwhile, the flowing air curtain stops external pollution from intruding, and the breathing pressure of the person after wearing the mask is also reduced.

Description

technical field [0001] The invention relates to a dustproof device. In particular, it relates to a dustproof mask using purified air. Background technique [0002] Mask is a common personal protective equipment for the human respiratory system. Common masks filter dust through a multi-layer filter structure to obtain clean breathing air. Because the air of this mask flows through people's breathing, the filtration of the mask will inevitably increase the burden on the respiratory organs, especially when people are exercising, it will cause damage to the human respiratory organs in severe cases. In addition, in today's increasingly serious ambient air conditions, simple masks are difficult to prevent PM2.5 from harming human health. [0003] The Chinese utility model patent with the notification number CN1055120A discloses a combined air-supply dust-proof mask. The dust-proof mask is connected to the breathing air bag hidden in the vest-style overalls through a transparent...

AI Technical Summary

Problems solved by technology

In addition, the air in the valve mask is directly in contact with the face of the person, and t

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