Masks are sanitary articles used to filter the air entering the mouth and nose.

Mask is a kind of hygiene products, generally refers to wear in the mouth and nose to filter the air into the mouth and nose, in order to prevent harmful gases, smells, droplets, viruses and other substances, made of gauze or paper.

Masks have a certain filtering effect on the air entering the lungs. Wearing masks has a very good effect when respiratory infectious diseases are prevalent and when working in the environment polluted by dust.

Masks can be divided into air filter masks and air supply masks.

Planar masks are divided into cotton masks, non-woven masks, polymer masks, activated carbon powder filter masks, activated carbon fiber felt masks.

Size :18×9(adult), 15×9(child).

Masks are classified into medical masks and non-medical masks, and (and newly identified) civilian sanitary masks.

At present, China's mask standards mainly regulate the two areas of civil protection and medical protection.Civil protective masks the standard GB/T 32610-2016 "technical specification for protective masks, GB 2626-2006 the respiratory protective equipment self-priming prevent particulate respirator filter type", mainly is suitable for the particulate matter protection, played an important role in the epidemic prevention and control, but to return to work and production of heavy use of block type mask (planar masks) cannot meet the requirements of the above two standards.Medical standards GB 19083-2010 Technical Requirements for Medical Protective Masks, YY 0469-2011 Medical Surgical Masks, YY/T 0969-2013 Disposable Medical Masks, mainly applicable to medical institutions and places.

Eu EN149 standard:

FFP1 mask :DOP PFE & GT;80%

FFP2 type masks :DOP PFE & GT;94%

FFP3 masks :DOP PFE & GT;99%

Eu EN14683 standard:

Type I medical mask: BFE>95%

Type II surgical mask: BFE>98%

Type IIR surgical mask: BFE>98%, blood penetration & GT;16 kpa.