Cup-shaped protective face mask
Due to the tight structure, dust masks usually have two styles, namely Cup-shaped protective face mask and folding type. Cup-shaped protective face mask relies on a pre-molded structure to support the filter material, which has the advantage of not being easily collapsed. Easy to keep in shape.
The selection of dust masks has the following principles:
1. Dust blocking efficiency of dust mask
The dust blocking efficiency of the mask is based on its blocking efficiency against fine dust, especially for respiratory dust below 5 microns. Because dust of this particle size can directly enter the alveoli, it has the greatest impact on human health.
2. The degree of closeness between the dust mask and the shape of the face
Everyone has the experience that air is like water, where the resistance is small, it flows first. When the shape of the dust mask does not fit closely with the face, the dangerous substances in the air will leak in from the non-contact and enter the respiratory tract of the person. Then, even if you choose a mask with the best filter material, it cannot protect your health.
3. The dust mask is comfortable to wear
Its requirements include small breathing resistance, light weight, hygienic wearing and easy maintenance. In this way, workers will be willing to stick to wearing them in the workplace and improve their work efficiency. Conversely, workers are reluctant to wear them, and wearing them will also affect normal work efficiency.
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