Activated layer of charcoal offers relief from nuisance levels of organic gasses and vapours often found in conjunction with particulate hazards. 10 x WEL against ozone. FFP2 for protection against toxic dusts, mists and fumes. 10 x WEL, Strap and clip - allows you to hang the mask around the neck during breaks. Activeform for a good seal that moves with the face. Ventex - valve reduces moisture and heat. Conforms to EN149:2001 + A1:2009