There are many kinds of face masks on the world. there are quite different in usage and quality.
Roughly we can distinguish grades by usage designed as:
1, Dust proof masks. They are designed for dust proof only, have no effect to protect from any virus.
2, Medical general disposal masks. They are designed for general medical usage only, may have some few effect to block virus.
3, Medical surgical disposal masks. They are designed for blocking germs and virus, can block much of virus. Although they are not the most protective, but cheap and easy to get.
4. N95/KN95/FFP2 masks. They are designed for blocking PM2.5 particles so do it to virus. So block most of virus if keep it in good condition.
5.Medical surgical protective/ N95/FFP3 masks. They are designed for blocking virus in medical condition. So block almost all of virus if keep it in good condition.
they are usually high price but best functional and durable.
And also, they are different quality between masks in same grade. You may find difference in material, outlook, technology, brand etcs, we will discuss in another aticle.
|Face masks class |
Daily dust proof masks
|Only block dust and spray, not designed for block virus ||Not qualified for blocking any virus. |
|Medical disposal masks ||Can block germs. Can block spray. No strict requirements for virus protection |
|Not qualified for blocking coronavirus. |
Medical surgical masks
|Designed for germs and virus protection. Can block spray which contains coronavirus. |
·Standard YY0469-2011 “surgical mask”
|·Wear it during daily use, public transportation, taxi driver, social workers and public service. |
·Reduces much of the chance of infection
·It’s cheap and disposal
|Designed for micron virus protection. Can block particles and spray which contains coronavirus. |
·Standard GB2626-2006 /FDA /CE
·Marked N95/KN95 “protective mask”
|·Wear it if have risk contacting with infected persons when going out, shopping or small gatherings. |
·Reduces most of the chance of infection
Medical protective/ N95/FFP3
|·Standard GB19083-2010 /FDA / CE |
·Marked N95 NIOSH “medical protective mask”
|·Wear it if have high risk be infected such as at hospital or facing or contacting patients. |
·Reduces almost all of the chance of infection