Patented coaxial valving system to make it the coolest
Low-maintenance
Patented process helps avoid the uncomfortable build-up of heat and moisture common in disposables
Designed for welding, as the swept-back profile fits easily under a welding helmet
Can also be used for many applications with solid particulates and non-oil based aerosols if the hazard ration is less than 10
In addition it has a replaceable filter
42CFR84 approved