The protective principle of kn95 mask filter membrane
The kn95 mask filter membrane is a membrane made of hydrophobic material that can be used for the preparation and filtration of a variety of conventional samples. When the membrane material is required to exhibit hydrophobic properties, prevent water from flowing through and allow air or gas to be filtered, it can be used Choose PTFE membrane.
Let’s first popularize the protective principles of masks.
Ordinary masks generally have three layers, the outer layer is waterproof, the middle layer is filtration, and the inner layer is water vapor absorption.
The outer waterproof layer is to prevent others from sneezing or spitting on you, or from the splash of body fluids and blood when the doctor performs surgery.
The inner layer is a water-absorbent layer, which absorbs water vapor generated during breathing and enhances wearing comfort.
The thickness of the kn95 mask filter membrane manufacturer is only about 0.2mm, which is very light and thin.
Intersected with traditional non-woven masks, they are much thinner.
The filter layer used by the mask membrane is less than 1/6 the thickness of traditional non-woven masks, and the breathing resistance of the mask is positively correlated with its thickness.
The nanometer-scale distribution of membrane pore sizes makes a layer of physical screening and filtration a reality, greatly reducing breathing resistance.
Only 1/2 of traditional non-woven masks.
The kn95 mask filter membrane made by the Suzhou PTFE filter membrane manufacturer by mechanically stretching PTFE material 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 alkali, 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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