5500 Series Half Mask with 2 Organic Vapor Cartridges, 2 N95 Filters & 2 Filter Cover, Size Large This respiratorkit comes complete with half-mask respirator and organic vaporcartridges Also includes N95 pre-filters and adapters Everything for organic vapor and non-oil based particulate protection N95 respirators are NIOSH certified to have filter efficiency level of 95 percent Available in large size This respirator kit comes complete with half-mask respirator, organic vapor cartridges and n95 pre-filters and adapters Everything you need for organic vapor and non-oil based particulate protection N95 respirators are niosh certified to have filter efficiency level of 95 percent or greater against particulate aerosols free from oil Available in large size