ZHENGZHOU U-CHOICE MEDICAL INSTRUMENT CO., LTD
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Lace-up Disposable Surgical Medical Mask BFE >95%
Structure and composition of medical surgical masks:
It is generally made of nonwoven materials, including filter layers, mask bands, and nose clips. Standard medical surgical masks are divided into 3 layers. The outer layer has a water blocking function to prevent droplets from entering the mask. The middle layer has a filtering function to block> 90% of 5μm particles. The inner layer near the nose and nose is used to absorb moisture.
Material of disposable surgical medical mask:
Medical surgical masks use polypropylene as the main raw material;
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 non-flammable.
The mask burns <5s after leaving the flame;
The ethylene oxide residue of the mask sterilized by ethylene oxide should be <10μg / g;
The primary skin irritation index of the mask material should be ≤0.4 There should be no sensitization.