Expiration and inspiration separating type anti-fog mask

Abstract

The invention discloses an expiration and inspiration separating type anti-fog mask. The expiration and inspiration separating type anti-fog mask is characterized by mainly comprising a mask piece, fixing bands and a mouth expiration device. According to the expiration and inspiration separating type anti-fog mask, a breathing process is separated into two consecutive and independent processes of inspiration with nose and expiration with mouth, so that humid air expired through nasal cavities is separated from fresh air which is inspired, and is directly exhausted from the mask through the mouth expiration device by the mouth to avoid steam being accumulated in the mask and generating fog which fogs eyeglasses, also avoid the breeding of bacteria expired together with air and the accumulation of carbon dioxide and eliminate the root of eyeglass fogging. By such treatment, any influence of the mask on the wearing of the eyeglasses is eliminated, the mask is always kept dry, discomfort is avoided, and broad market prospect is ensured, so that the expiration and inspiration separating type anti-fog mask has important social significance and remarkable economic significance.

Description

technical field [0001] The technical field that the present invention relates to is a mask for preventing glasses from fogging, in particular to an anti-fog mask for separating exhalation from inhalation. Background technique [0002] In the cold winter, people often wear thick cotton gauze masks outdoors to keep their faces warm. For people who wear myopia glasses or goggles, this is a very troublesome thing. Typically, the tidal volume at rest in an adult is about 500ml. About 5% of exhaled air is water vapour. After the water vapor is exhaled from the nasal cavity, it will produce mist when it encounters cold air. These mist are blocked by the mask and rise and condense on the cold eyeglass lenses, atomizing the glasses, thereby seriously affecting eyesight and bringing great inconvenience to the people who wear the glasses. In addition, after breathing for a long time, the moisture in the exhaled air will also make the mask wet, which makes wearing the mask uncomfort...

AI Technical Summary

Problems solved by technology

The fog is blocked by the mask and rises and condenses on the cold glasses lenses, fogging the glasses, which seriously affects vision and brings great inconvenience to people wearing glasses.

In addition, after breathing for a long time, the moisture in the exhaled air will also make the mask wet, which makes wearing the mask uncomfortable.

[0003] At present, there is no product on the market that solves this problem

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