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Dust blocking efficiency of mask non-woven fabrics and masks

by:XINYU Non-woven     2022-03-04

The protective effect of mask non-woven fabrics is based on the adsorption of fine dust (especially dust less than 5 microns). Because dust with this particle size can directly enter the alveoli, it has a greater impact on human health.

General gauze masks, the dust blocking principle is mechanical filtration, that is, when the dust collides with the gauze, it passes through layers of barriers to block some large particles of dust in the sand cloth. But some fine dust, especially dust smaller than 5 microns, will enter the respiratory system through the gauze mesh.

At present, there are some anti-dust work masks abroad. The filter material is composed of fibrous cells charged with static electricity. Those respirable dust smaller than 5 microns pass through the process without such filter material. It is attracted by static electricity and adsorbed on the filter material to capture a fine metal dust, which really plays a role in preventing dust.

Air movement is first and foremost resistance. When the shape of the mask non-woven fabric is not close to the face, the dangerous substances in the air will leak into the human respiratory tract.

So, even if you choose a mask with the best filter material. Nor can your health be guaranteed. Many foreign regulations and standards stipulate that workers should regularly test the tightness of non-woven fabrics for masks. The purpose is to ensure that workers choose the appropriate non-woven mask and wear it in the correct procedure. It requires small breathing resistance, light weight, regular hygiene and easy maintenance. In this way, workers will be more likely to persevere, increasing their productivity in the workplace.

Now foreign maintenance-free masks do not need to be cleaned or replaced. When the dust is saturated or the mask is damaged, it is discarded, and then the hygiene of the mask non-woven fabric is ensured, eliminating the time and energy of workers to maintain the mask. Many masks are arched to confirm a good fit with the shape of the face and to preserve some space in the non-woven mask for a comfortable fit.




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