Pureflo ESM Powered Air Purifying Respirator The new Pureflo ESM powered respiratory helmet provides an integrated personal safety solution for industrial environments, offering all-in-one head, eye, face and respiratory protection against hazardous airborne contaminants, sparks, flying debris, chemical and molten metal splashes. Lighter, smaller, more comfortable to wear and more powerful than previous Pureflo models, this unique, battery powered, positive pressure system delivers a constant, plentiful supply of clean air at 170 liters per minute, via a high efficiency P-100 filter. Two lightweight, rechargeable batteries slot easily into the helmet, providing 8 hours or more of continuous operation. Additional options include a welding screen, mesh face-shield, lamp bracket attachment, and radiant heat kit. "NIOSHA APPROVED POWERED AIR PURIFYING RESPIRATOR"