KN95 Special Melt-Blown Cloth

KN95 Special Melt-Blown Cloth

According to the requirements of PFE95 and PFE99 for particulate matter filtration rate PFE, Tianyitang provides 0.3 μ m 32 flow rate single layer PFE95, 0.3 micron 85 flow double layer PFE95, PFE99, and 95 flow rate 99 high index melt blown cloth, which can meet the requirements of KN95, N95 and other masks for Melt-Blown Cloth.

Melt-Blown Cloth is the core material of the mask. Polypropylene is the main raw material of Melt-Blown Cloth, and the fiber diameter can reach 1 to 5 microns.

The ultra-fine fiber with unique capillary structure increases the number and surface area of fibers per unit area, so that the Melt-Blown Cloth has good filtration, shielding, thermal insulation and oil absorption, because of its many voids, fluffy structure and good anti-wrinkle ability, and the ultra-fine fiber with unique capillary structure increases the number and surface area of fibers per unit area.

It can be used for air, liquid filter material, isolation material, absorption material, mask material, heat preservation material, oil absorption material and wiping cloth collar.

BFE is the bacterial filtering effect (Bacterial Filtration Efficiency), measures the efficiency of the mask in filtering bacteria.

The BFE measurement is the ability of the mask to filter microbial particles from the inside. This test is mostly carried out at a flow rate of about 3.0 μ m (micron) and 28.3 lpm (liters per minute).

PFE is the particle filtering effect (Particulate Filtration Efficiency), measures the efficiency of the mask to filter particles.

Is a three-layer nonwoven mask with 99%PFE more effective than N95 (that is, 95% PFE)?

In fact, it is not. According to the NIOSH N95 standard, the test will be carried out at a flow rate of 0.3 μ m and 85 lpm, while the NIOSH N95 test with a surgical mask of more than 95% of PFE will often result in less than 70% of the test.

The main reason is that the efficiency of filtering materials is often affected by the amount of air flow. the greater the amount of air flow, the lower the efficiency of filtering particles.

The main function of the surgical mask is to prevent the transmission of droplets from the user to others, but it can also use the outer layer of PP anti-splashing material to block the transmission of other people's droplets to the mouth and nose of the user.

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