Pro Mask® helps companies with innovative, sustainable and customizable masks to minimize the risk of infection and staff absence to keep costs and process intact. The Pro Mask is a textile mask with 3 different filter variations, the mask with the first standard filter uses a 12-layer filter system, it filters at least 80% of particles in the air, the second standard is our depth filter, the depth filter filters 99% of the particles out of the air, the 3rd standard is the nano filter fleece, it filters up to 99,999+% of the particles in the air.For customer requirements, go with the Pro Mask!