The Structure And Composition Of Medical Surgical Masks
Release time：2023-08-23
Generally made of non-woven materials, including filter layer, mask belt and nose clip. Standard medical surgical masks are divided into 3 layers, the outer layer has water blocking effect to prevent droplets from entering the mask; the middle layer has a filtering effect, which can block >90% of 5μm particles; the inner layer near the mouth and nose is used to absorb moisture
The material of medical surgical masks
Medical surgical masks use polypropylene as the main raw material, and the fiber diameter can reach 0.5-10 microns. These ultra-fine fibers with unique capillary structure increase the number and surface area of fibers per unit area, so that the meltblown cloth has good filterability, Shielding, thermal insulation and oil absorption.
The material of the mask is made of non-flammable materials, and the mask burns for less than 5s after leaving the flame; the residual ethylene oxide of the mask sterilized by ethylene oxide should be less than 10μg/g; the primary skin irritation index of the mask material should be ≤0.4 , There should be no sensitization.
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