Protective Clothing and Face Masks: Types of Raw Materials ...
2020-5-8 · The main body is made of three layers of non-woven fabric, using SMS structure, the material is spunbond non-woven fabric + spunbond non-woven fabric + spunbond non-woven fabric, the outer layer of anti-droplet, middle filter, the inner layer of moisture absorption. Medical N95 masks are 5 layers, on the other hand, SMMMS.
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