Sell (50pcs) KF94 3D Protection Kids Mask KF94 Anti-Dust Breathable Face Mask Kids Mask Protection Prevent Influenza best price

FACE MASK ADULT KF94🇰🇷KF94 Individual Packing High quality (4-ply) face masks Option: 1)4-ply KF94 Kids White 2)4-ply KF94 Kids Black 3)4-ply KF94 Dinosaur 4)3ply 3D Kids Dinosaur 5)3ply 3D Kids Forest Dinosur 6)3ply 3D Kids Dinosur 7)3ply 3D Kids Yellow Chocodile Below is the detail for 4ply KF94 Mask: 4 ply with melt blowned is disposable low air resistance breathe more smooth defense smog & haze & droplet infection this product is disposable Prevent influenza wearing anti-haze masks can protect against some influenza viruses, as most influenza viruses to aerosol particles that are larger than themselves. can block 95 % of virus laden droplets from entering the respiratory tract Pm2.5 mask is a mask that can block particles with an aerodynamic diameter of 2.5 microns or more. The N95 mask is a mask certified by the National Institute of Occupational Safety and Health, which can block 95% of dust particles in the air. The diameter of the dust particles is the smallest. Up to 70-90 nanometers, many of our viruses, especially influenza viruses, the diameter of the new coronavirus is about 60 ~ 140 nanometers. Compared to ours, the diameter of masks that can block particles can be found. Pm2.5 masks, which can block Particles with a diameter of more than 2500 nanometers are completely unable to block the coronavirus, and the diameter of the particles blocked by the n95 mask is exactly the same as that of the new coronavirus. It is also said that the virus spreads with the droplet, as long as it can block the droplet You can stop the virus, let's look at the diameter of the droplets. Most of the diameters of the droplets are about 1.5 microns to 175 microns. In other words, the smallest droplets can also pass through the mesh of PM2.5 masks, and the surgical protective masks and N95 masks we use can block the droplets and thus prevent the virus from spreading.