Labor protection mask filter material can meet the European standard EN149, American standard NIOSH42 CFR-84, Japanese MOL standard and China's 2626 dust mask standard.
Can be made into European standard FFP1, FFP2, FFP3, American standard N95, N99, N100, R95, R99, Japanese standard DS1, DS2, national standard KN90, KN95, KN100, KP90, KP95, KP100, and other levels of labor protection dust masks and apparatus.
Surgical masks are in fact relatively simple, nothing more than by three layers of things. Outer layer: waterproof blocking liquid, middle layer: adsorption of particles, play a role in filtration, inner layer: the inner layer of moisture absorption.?
The middle layer is required to be meltblown cloth, which is an industrial raw material and is made of a material called ? Meltblown? The process of making the nonwoven fabric, only it is better filtering effect. At present, Taobao does not have a few sellers, 1688 on the contrary, there are a lot of, but as the most important part of the supply chain of masks, and rushed at this point in time, there is no goods. Then there is no substitute for it? There really is! While researching nonwovens, I noticed something called SMS nonwoven, which is a combination of spunbond and meltblown process, and according to wikipedia, it is also used for masks and has good antibacterial properties.
The four-piece bed set for travel made of SMS nonwoven fabric should be able to make more than 2,000 masks for a 1.8-meter bed four-piece set if the filter layer is made of a single layer.?