Must choose a medical mask? Industrial grade and anti-fog N95 / KN95 can't?

• "The GB2626-2006 standard KN95 that can be bought on Taobao are all industrial masks, which can only be dust-proof, and cannot prevent viruses at all."
• "Medical materials are so scarce that hospitals only need GB19083-2010 medical protective masks, indicating that GB2626-2006 standard KN95 does not play a protective role."
• "The standard index of GB2626 is lower than that of GB19083. It is usually possible to prevent smog, so don't buy medical protection."
• "N95 is usually referred to as a general name, representing the level of protection. In fact, industrial protection and medical protection have N95 levels. Not all N95 can be anti-virus. Now many businesses touch the fish in muddy water, blowing the N95 mask of industrial protection into anti-virus, or Stupid or bad. "

These claims are not accurate.

● The  first-line medical staff and those who are in direct contact with the patient should use medical masks in consideration of the special nature of the environment (anti-liquid splash etc.), so the hospital accepts donations as long as the medical protective masks of GB19083-2010 and the medical of YY0469-2011 Surgical mask.

●  Ordinary people choose non-medical N95 / KN95 . The need to prevent splashing can be ignored, after all, patients with new coronavirus should not spit or spit at you.

It's not that merchants blowing fish in muddy water blows industrial dust-proof or smog-proof N95 masks into antivirus. No matter what color, what style, what purpose N95 / KN95 mask, as long as it meets the standard , whether it is NIOSH in the United States, or "GB19083-2010 Medical Protective Mask" in China, or "GB2626-2006 Respiratory Protection Products-Self-Suction Filter Type" Anti-particulate respirator ", which meets the filtration efficiency of non-oily particles (PM0.3) ≥95%, can be used in industrial dust control, can be used to prevent haze, can also effectively prevent flying droplets.

It's just that the selling point was to prevent smog, so some masks that originally met the N95 / KN95 standard (PM0.3 filtration efficiency ≥ 95%), specifically marked an anti-PM2.5, does not mean that it can only prevent PM2.5 .

Daily number with public figures also not surgical masks (breathing valve).

The People's Daily public account suggested that children should wear masks, "It is recommended that children choose products that meet the national standard GB2626-2006 KN95". Description GB2626-2006 standard KN95 is can play an effective protective effect of.

"The 932 and 1860 of N95 produced by 3M Company belong to protective masks, and the others are anti-haze". This statement is also inaccurate.

Although other masks such as N95 and KN95 / KN90 are not medical protective masks , they can also be called protective masks , which can not only prevent haze, but also effectively block droplets.