Conforms to EN 143.

For use in concentrations of organic vapours upto 10x Workplace Exposure Limit (WEL) or 5000 ppm whichever is the lower when fitted to a 3M half mask or up to 20x WEL or 5000 ppm whichever is the lower when fitted to a 3M full face mask.

Standards
EN 143:2000 + A1:2006