Air leakage prevention mask

Abstract

The invention relates to an air leakage prevention mask, which belongs to the technical field of masks and comprises a mask body, a nose bridge clamp, single hanging belts and a waste gas amount control clamp. The nose bridge clamp and the waste gas clamp are fixedly connected to the mask body, and the single hanging belts are connected to the two sides of the mask body to be used for fixing or connected to the top of the mask body to be used for improving the leakproofness of the mask body. The air leakage prevention mask is low in air leakage rate and good in wearing stability.

Description

technical field [0001] The invention relates to a mask, in particular to an air-leakage-proof mask, which belongs to the field of masks. Background technique [0002] Existing mouth mask is made of mask body, bridge of the nose strip, double ear strap or head, neck strap, and its strap tightness generally cannot be arbitrarily regulated because of face size difference. If the strap is tight, it will easily cause poor comfort, and / or cause major defects such as indentation damage to the face, neck, head, and ears; The position where the face fits with the face changes, causing air leakage, causing fogging of the glasses, poor protection and other major defects. And be provided with the existing mouth mask of devices such as lanyard tightness adjustment or anti-leakage, mainly have defects such as complex structure, low degree of automation of production process, high processing cost, troublesome use. In addition, during the wearing process of existing masks, due to the expa...

AI Technical Summary

Problems solved by technology

[0002] Existing masks are composed of a mask body, a bridge of the nose, ear straps or head and neck straps, and the tightness of the straps generally cannot be adjusted arbitrarily due to different face shapes.

If the strap is tight, it will easily cause poor comfort, and / or cause major defects such as indentation damage to the face, neck, head, and ears; The position where the face fits with the face changes, causing air leakage, resulting in fogging of the glasses, poor protection and other major defects

And be provided with the existing mouth mask of devices such as lanyard tightness adjustment or anti-leakage, mainly have defects such as complex structure, low degree of automation of production process, high processing cost, troublesome use etc.

In addition, during the wearing process of existing masks, due to the expansion of the mask chamber when exhaling, the amount of exhaust gas stored in the mask chamber is large, and it is inhaled into the lungs for two or more times, which seriously affects the breathing efficiency.

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