Moldex® 2940R95 Series particulate respirators with HandyStrap® plus nuisance levels of Acid Gas Irritants are NIOSH certified under 42CFR84 regulations to have a filter efficiency level of 95% or greater against oil and non-oil based particulate aerosols up to 10X PEL. Added sorbent helps to filter nuisance levels of acid gas irritants. HandyStrap® allows mask to conveniently hang down around the user's neck so it’s always ready for use. And during wear the adjustable stretch cloth strap is more comfortable and cooler. Exclusive Ventex® valve lets the hot air out faster so breathing resistance is reduced and workers stay cooler. The exclusive Dura-Mesh® shell protects the filter media so it stays cleaner looking longer. Plus it resists collapsing, even in heat and humidity so the respirator holds its shape longer. The result is fewer respirators used and lower costs.