Filtering layer structure based on mask

Abstract

The invention relates to the technical field of respiratory protection devices, in particular to a filtering layer structure based on a mask, two sides of a filtering layer are provided with continuous and crossed rack-shaped ventilating grooves, and the ventilating grooves comprise a first ventilating groove, a second ventilating groove, a third ventilating groove or a fourth ventilating groove; each ventilation groove comprises a first ventilation groove wall and a second ventilation groove wall which are connected with each other, and the first ventilation groove wall and the second ventilation groove wall are formed by folding the filter layer; the ventilation grooves are composed of one or more of the first ventilation groove, the second ventilation groove, the third ventilation groove and the fourth ventilation groove. The filtering layer structure can effectively reduce the exhalation resistance under the condition of keeping the filtering effect unchanged, and is more comfortable to wear and use for a long time.

Description

technical field [0001] The invention relates to the technical field of respiratory protection devices, in particular to a mask-based filter layer structure. Background technique [0002] Wearing a mask is a routine and effective measure to protect against respiratory diseases, especially in certain respiratory infectious diseases, the protective effect of wearing a mask is more obvious. But there are following problems in existing mouth mask: [0003] If a breathing cavity is formed between the inner layer of the mask and the mouth and nose, it is often necessary to add plastic materials to the mask, such as hot air cotton, which not only increases the production cost, wastes materials, but also causes increased breathing resistance, and the lightness of the mask is not good. . Especially in the case of relatively high standards for some masks, such as requiring high filtering effect, good airtightness, and low breathing resistance, it is a difficult problem in the industr...

AI Technical Summary

Problems solved by technology

[0003] If a breathing cavity is formed between the inner layer of the mask and the mouth and nose, it is often necessary to add shaping materials in the mask, such as hot air cotton, which not only increases the production cost, wastes materials, but also causes increased breathing resistance, and the lightness of the mask is not good.

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