Brooklyn Nets symbols cloth face mask. mergency Response Center: “Wearing a mask has a very good effect on preventing respiratory diseases and reducing risks. muscles are affected by environmental pollution, smog, and prevent many other diseases like flu. ” (Source: nhandan.com.vn)
Science has proven that when sneezing, droplets can be thrown at a speed of 50 m / s, farther than 6 m. When coughing, the fluid particles will move at a speed of 10 m / s, diffuse farther than 2m. From normal breathing, the droplets only move at a speed of 1 m / s and only diffuse within 1m. These translation particles are about 75 to 360 micrometers (1 micrometre = 1,000 nanometers), while some masks can effectively filter particles larger than 5 micrometers. Therefore, it may be easy to prevent these particles from staying outside the mask.
