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gb 2626 standard melt blown cotton for nong bua lamphu

A 3 ply mask with ear loops is the most standard product. It provides and additional layer from dust and air particles. ... the mask because they filter out 95% of particles from the air breathed in. Wearing any of the other masks in the list cotton and disposable are intended to protect others around you from your own respiratory droplets and ...

China Anti Particulate Pm2.5 Disposable Safety Air ... This type of disposable three-layer mask consists of two layers of non-woven fabrics and a piece of filter paper,capable of filtering out bacteria at a rate of 95% and above,It has good air permeability, comfortable to wear,dust prevention and sterilization, Environment friendly and wholly plastic strip is adopted for the part over the ...

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