Because of the haze, many people started buying and wearing masks instead of not wearing masks at first.
Nowadays, masks have become a necessity in our lives.
However, many people have doubts about how much smog the masks they bought can prevent. In this regard, the editor conducted a survey on anti-smog masks and found that polytetrafluoroethylene is used. Masks made of mask film materials are quite effective.
The dust blocking efficiency of a mask is based on its blocking efficiency against fine dust, especially respirable dust below 2.5 microns.
Because dust of this particle size can directly enter the alveoli, it will have a serious impact on human health.
The dust-blocking principle of gauze masks is mechanical filtration, that is, when dust hits the gauze, it passes through layers of barriers to block some large particles of dust in the gauze.
Some fine dust, especially dust less than 2.5 microns, will pass through the mesh of the gauze and enter the respiratory system.
Dust-proof masks are made of filter materials such as activated carbon fiber felt pads or polytetrafluoroethylene mask membranes. Respirable dust smaller than 2.5 microns is blocked in the process of passing through this filter material, thereby filtering the air. effect.
The polytetrafluoroethylene mask membrane is prepared using a unique biaxial stretching technology, which can ensure the complete retention of bacteria and other impurities while having a large flux.
The material is resistant to high temperatures, strong acids and alkalis, and has wide chemical applicability. When used for gas filtration, it can achieve 100% retention of various phages, bacteria and particles above 0.02um.
PTFE microporous membrane has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency and ultra high efficiency air filters.
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