3M™ Flat Fold Particulate Respirator 9542V, P2, Valved, with Nuisance Level* Organic Vapour Relief (Pack of 20)The 9542V is a valved, disposable specialty respirator with a folded design for easy storage and dispensing in the workplace. Each respirator is individually wrapped, protecting it from contamination prior to use. The 9542V respirator is compatible with other 3M personal safety products, e. g. eyewear and earplugs. Protection factor: 10 x Workplace Exposure Standard Packaging: 20 respirators box, 10 boxes case *Nuisance levels are those levels below