Double-layer transparent breathing filtering mask

Abstract

A double-layer transparent breathing filtering mask comprises a double-layer transparent frame shell used for covering the face of a user, the double-layer transparent frame shell is made of hard and double-layer transparent materials in an overlapped mode, and in a visible area of a wearer, the top face and the front face of the double-layer transparent frame shell are of a visible structure, each face of the frame shell is provided with an interlayer and forms a double-layer structure, and air holes used for achieving air exchange inside and outside the frame shell are formed in the double-layer structure area of the frame shell, and a filter layer which is arranged in an inner and outer interlayer of the frame shell and is used for filtering airflow entering the frame shell. Through the structural design, the interlayer respirator provided by the invention not only provides a filtering function, but also can be perspective, the temperature difference and the air pressure difference between the inner layer and the outer layer can be kept to reduce fog formation, and all the parts are matched to form a closed breathing system to serve as a filtering and perspective medical breathing protection device.

Description

technical field [0001] The invention relates to the technical field of personal protection devices, and more specifically relates to a double-layer transparent breathing filter mask. Background technique [0002] Mask is a kind of sanitary product, which generally refers to wearing on the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, droplets, viruses and other substances. [0003] Masks can generally be divided into ordinary protective masks and medical protective masks. The main part of ordinary protective masks is generally made of one or more layers of fabrics. These fabrics are mostly opaque and breathable materials. The main part of medical protective masks is made of multi-layer Composed of non-woven fabrics (usually polypropylene non-woven fabrics), the above two types of masks have lower protection levels. [0004] In order to meet higher protection requirements, the prior art also provides a respirator, which in...

AI Technical Summary

Problems solved by technology

[0005] For the respirator, it must fit the user's face. Since the mask and the pre-filter layer can be regarded as hard materials, a large fixing force (binding force) must be applied when wearing it. Only then can the mask fit the user's face completely, which will cause the user to wear it uncomfortable

In addition, because the respirator is worn on the user's face, the area of ​​the breathing surface provided by the respirator (the surface that can realize the passage of airflow in the mask) is only about 50% of the front surface area of ​​the respirator, and other surfaces are used as supporting surfaces and sealing, which will result in a smaller breathing accommodation space between the user's face and the respirator, and a smaller breathing accommodation space will cause the exhaled moisture and heat to not be effectively dissipated, and the accumulation of moisture, heat and pressure will increase. More, the greater the user's breathing resistance, which will further reduce the user's wearing comfort

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