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How To Choose And Select Mask For Using?
2020/04/01
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Choose according to the dustproof efficiency：
Select from the degree of closeness：
The dust blocking efficiency of the mask is based on its blocking efficiency of fine dust, especially respirable dust below 2.5 micrometers.Because this particle size of dust can be directly into the alveoli, human health caused the greatest impact.
Gauze mask, its dustproof principle is mechanical type filter, it is when dust impingement to gauze, pass through - layer upon layer of cut off, cut off a few big particle dust in sand cloth.For some fine dust, especially those smaller than 2.5 microns, it passes through the mesh of the gauze and enters the respiratory system.
Dust respirators, made of activated carbon fiber felt pads or nonwoven fabric, are used to filter the air as respiratory dust smaller than 2.5 microns is trapped as it passes through.
Select from the degree of closeness：
Mask side leakage design is to prevent air through the mask and the human face gap without being inhaled through the filter technical requirements.Air, like water, flows where there is little resistance.When the mask shape is not close to the face, the dangerous things in the air will leak into the person's respiratory tract.
So, even if you choose the best filter mask.It doesn't protect your health.Many international regulations and standards stipulate that workers should be regularly tested for the tightness of masks.The aim is to ensure that workers choose appropriate masks and wear them according to the correct procedures.
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