Dust-proof filter mask

Abstract

The invention discloses a dust-proof filter mask which comprises a mask body and fixing bands. The mask body and the fixing bands are connected. The mask body comprises a breathable outer layer, a filter layer and an inner layer, the breathable outer layer, the filter layer and the inner layer are connected in sequence from outside to inside, the inner layer comprises an edge part and a middle part which are connected with each other, the middle part comprises an upper flat plate body, the upper flat plate body corresponds to the position of the nostrils, a nostril air inlet one-way valve is arranged on the upper portion of the upper flat plate body, and a nostril air outlet one-way valve is arranged on the lower portion of the upper flat plate body. The nostril air inlet one-way valve comprises a nostril air inlet valve groove and an air inlet rectangular hole which are matched with each other, the air inlet rectangular hole is covered with a nostril air inlet valve sheet, the nostril air outlet one-way valve comprises an air outlet valve groove and an air outlet rectangular hole, the air outlet rectangular hole is covered with a nostril air outlet valve sheet, and the air outlet valve sheet is connected with the air outlet valve groove in the left side or the right side of the air outlet rectangular hole. The dust-proof filter mask is low in inhalation and exhalation resistance and suitable for being used by a wearer requiring the mask with a plurality of layers and the large inhalation resistance of the mask, and guarantees the body health of a user.

Description

technical field [0001] The invention relates to the technical field of respiratory protection equipment, in particular to a dustproof filter mask. Background technique [0002] The masks of the prior art, especially in severe cold winters, when the pollution is relatively serious, and when the masks need to be worn with many layers and dense masks, the breathing resistance of the masks is relatively large, especially for the elderly or children, it is easy to wear them. Feeling of poor breathing, especially when you have a cold and stuffy nose, the nostrils are easy to congest, and the breathing is even more difficult, which brings discomfort to the wearer. You can only take off the mask or breathe through your mouth, which will make the wearer inhale pollutants. Can not bring into play the effect of mouth mask, be unfavorable for people's health. Contents of the invention [0003] The purpose of the present invention is to provide a kind of dust-proof filter mouth mask f...

AI Technical Summary

Problems solved by technology

[0002] The masks of the prior art, especially in severe cold winters, when the pollution is relatively serious, and when the masks need to be worn with many layers and dense masks, the breathing resistance of the masks is relatively large, especially for the elderly or children, it is easy to wear them. Feeling of poor breathing, especially when you have a cold and stuffy nose, the nostrils are easy to congest, and the breathing is even more difficult, which brings discomfort to the wearer. You can only take off the mask or breathe through your mouth, which will make the wearer inhale pollutants. Can not play the role of masks, is not conducive to people's health

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