3M 6038 P3R (nuisance level organic vapour and acid gas and hydrogen flouride). Encapsulated Particulate Filters.* Ideal for wet conditions* Hazard is contained within filter media, protected by plastic case avoiding risk of skin contamination on removal of filter.* Easy clean surface Standard: EN143 Approval: CE marked Maximum use concentrationWhen used with half masks: 20xWEL* Hydrogen Flouride: 10xWELWhen used with Full face masks: 40xWEL, Hydrogen Flouride up to 30 ppm Below WEL for gases and vapours*Workplace Exposure Limit1 BOX = 20 FILTERS (NOT PAIRS)