Large faceshield offers excellent visibility. Scratch-resistant polycarbonate lens is tough and durable. Nosecup helps eliminate fogging. Speaking diaphram makes communication easy and clear. Accepts 6000 Series cartridges, 2000 Series filters and all 7000 Series cartridges, filters and retainers (all sold seperately). The 3M 7800 is now shipped assembled with the 701 adapter to accommodate 6000 Series cartridges. Available in three sizes S-L. NIOSH approved. Sold individually. The 7800 is compatable with 3M Supplied Air Systems.