The 3M 4000 Series is a range of ready-to-use, maintenance-free half face masks designed for effective and comfortable protection against a combination of gases, vapours and particulate hazards found throughout industry. Utilising unique filter technology enables a very low-profile design for undisturbed field of vision to make your protection more comfortable. Low profile design for better peripheral vision. Lightweight, well balanced design for a stable, secure fit. Soft, non-allergenic material with textured face seal. Exempt from maintenance requirements if disposed of within a month. One piece, maintenance-free construction; built in filters. Valve centrally positioned for effective removal of heat and moisture build up within facepiece. Adjustable head cradle with neck straps. EN405:2002 FFABEK1P3RD. APF 20 for particulates. Organic vapour/inorganic/acid gas/ammonia, particulates. Applications: Burn stripping for paint removal, using ammonia solutions, agrochemicals, manufacture and maintenance of refrigeration equipment.