Our EZ Air Flex Grinding/Welding Air Shield Supplied Air Respirator (SAR) is intended for industrial applications where combined respiratory, eye and face protection are required. This welding helmet features a durable flip-up visor to expose a grind shield below that maintains respiratory protection while workers can continue grinding or inspecting welds. It is a system that provides a constant supply of fresh air over the user's face. At an APF level of 25, it creates an optimal protective pressure inside the respirator head top keeping away particulates (dust, steel, manganese, stainless steel, chromium, galvanized steel, cadmium, lead and ozone). Recommended applications are welding, assembly, facility maintenance, grinding, machine operations, painting and sanding. Suggested industries include automotive, food and beverage, pharmaceutical, general manufacturing, metal production and fabrication, military maintenance, repair and operation (MRO) and transportation. Complies with ANSI Z87.1+ and CAN/CSA Z94.3 for face-shield/eye protection. CE certified. NIOSH approved. This two-worker system comes with 2 head top assemblies, 2 - 50' Hoses, and an Allegro 9832 Pump.