Standard: CE EN 149:2001 + A1:2009 NR D. ISO 9001:2008. ISO 13485:2003
Plastic Outer Layer: Polypropylene
Nonwoven Inside Layer: Polypropylene
Nonwoven Electrostatic Filter: Polypropylene
Head Band: Knitted Elastic Band
Nose Foam: Polyethylene Soft
Valve: Polypropylene
Valve Diaphragm: Thermo Plastic Elastomer / Silcone
(UK/EU Equivalent or better to KN95, N95 & N99)