Novel filtering mask

Abstract

The invention provides a novel filtering mask which comprises an outer layer, a middle layer and an inner layer; the outer layer is an outer air permeable layer; the middle layer is a permeation-proof layer with breathing holes; the inner layer is a spunbonding layer; annular fixing rings are arranged in positions, corresponding to the breathing holes of the middle layer, of the inner layer; filters are movably fixed to the fixing rings; the positions of the filters correspond to those of the breathing holes of the middle layer; brackets used for supporting the filters are arranged in the fixing rings; and a high-ductility nose rack is arranged on the inner layer. The air permeable fashion outer layer is arranged on the outer side of the novel filtering mask, the inner layer is equipped with the detachable filters and an air freshening agent, different filters are selected as needs, the filters have four levels of filtering efficiency, namely, 80%, 90%, 95% and 99%, and the filters in each level of filtering efficiency have four sizes to be selected.

Description

technical field [0001] The invention belongs to the technical field of health protection, in particular to a novel filter mask. Background technique [0002] Masks generally refer to the utensils worn on the mouth and nose to filter the air in the mouth and nose, so as to block harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. They are mostly made of cloth or paper, and are generally divided into air filters. masks and air-supplied masks. With the rapid development of social economy and the improvement of people's living standards, people's demand for energy has increased, resulting in a great impact on the environment. In recent years, in areas with relatively developed industrialization, dense factories and densely populated cities, the air pollution is more serious, and the pollutants contained in the air have increased, especially the fine particles that are most harmful to humans, whose diameter is less than or equal to 2.5 micro...

AI Technical Summary

Problems solved by technology

[0005] However, the existing masks have a simple one-piece structure and only simply block particles in the atmosphere. If a cleaner filtering effect is required, the cost is high and cannot be reused, and more exhaled gas will be accumulated in the mask, resulting in Hot and humid, uncomfortable to wear

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