A mask that can effectively filter PM2.5

Abstract

The invention discloses a mask capable of effectively filtering out PM2.5, and belongs to the technical field of daily life protective equipment. The mask comprises a mask body. The mask body comprises an inner layer, an outer layer and a filter piece. First and second ear hanging loops are arranged on the left and right sides of the mask body. The filter piece is arranged between the inner layer and the outer layer or arranged on the side, backing on to the outer layer, of the inner layer. The mask is characterized by further comprising a face attaching supporting and expanding mechanism which is arranged around the peripheral edge of the mask body, is used for enabling the peripheral edge of the mask body to make contact with the face of a wearer in an attached mode, and expands the whole mask body when the wearer wears the mask body; the first and second ear hanging loops are retained on the left and right sides of the mask body through the face attaching supporting and expanding mechanism, and the filter piece is a breathable and waterproof filter membrane or a melt-blown nonwoven fabric. The sealing performance between the peripheral edge of the mask body and the face of the wearer is ensured, lenses of glasses of the wearer will not be steamed up, the protective effect is good, the ideal waterproof effect is reflected, and the phenomenon that the whole mask moves about and displaces up and down or left and right when the wearer wears the mask is avoided.

Description

technical field [0001] The invention belongs to the technical field of daily life protective articles, and in particular relates to a mask capable of effectively filtering PM2.5. Background technique [0002] The aforementioned PM2.5 refers to the suspended particles with a diameter of approximately 2.5 μm in the atmosphere. This kind of suspended particles is called lung-infected particulate matter in the medical and biological circles. Long-term inhalation will damage the lungs and airways, and even appear undesirable. But unavoidable and resistant diseases such as lung cancer or similar diseases. [0003] The aforementioned mask is a well-known protective equipment, and the purpose of wearing a mask is self-evident, that is, most of them are for keeping warm and / or ensuring hygiene and safety. Masks are used in medical treatment, catering, chemical and pharmaceutical production, high-end materials and The use of its products and other industries is more common. In addit...

AI Technical Summary

Problems solved by technology

Although these patent solutions that are not limited to examples have corresponding technical effects, and can block and / or filter PM2.5 to a certain extent, objectively there are the following disadvantages: First, due to the For example, there are special physiological curvatures in the nose itself, between the nose and the cheeks, between the nose and the mouth, and between the mouth and the cheeks. Therefore, when wearing a mask, it is often difficult to make the surrounding edges in good contact with the face, so It is not enough to achieve the anti-haze purpose that people expect, and the glasses lenses worn by water vapor are blurred, which affects the line of sight; second, due to the influence of traditional thinking patterns, the number of layers of mask materials is often increased (as CN201248380Y and CN202536155U all adopt Five-layer structure) tries to improve the filtering effect of PM2.5, so it neglects to pay attention to the filter material. However, in the actual use process, too many layers will affect the normal breathing of the wearer

In addition, the aforementioned CN202445176U and CN203762328U (proposed by the same applicant) have sockets for inserting the filter, so the filter can be replaced as needed. but lack of waterproof

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