So far, simple membrane filtration technology has shown great potential and is used correctly. Mask membrane filtration materials are among them. It can effectively replace or replace many other plots or purification processes.
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 composed of activated carbon fiber felt pads or mask membrane filter materials. Respirable dust smaller than 2.5 microns is blocked in the process of passing through this filter material and plays a role in filtering the air. .
The mask membrane filter material is prepared using a unique biaxial stretching technology, which can ensure 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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