Lightweight pillow foam padding ensures the helmet always sits comfortably on your head. The padding is hook and loop mounted and easily removed for hygienic cleaning. The large wrap around double lens allows optimum vision without irritating side glare. Optional tear-off lenses are also available. The inner lens complies with ANSI Z89.1, Inner Lens ANSI Z87.1+ standards for impact resistance, providing a high level of protection for the worker. Air duct distribution diffuses an even flow of breathing air throughout the helmet to cool the head and face, and prevents the lens from fogging. Multi-layered sound deadening foam makes this helmet the quietest on the market. This helmet is offered with a High Pressure Adjustable Flow Control Valve, Cooler, Heater or Low Pressure Constant Flow Valve. NIOSH approved. The NV2000 is NIOSH approved with a flow control valve and air temperature controller for abrasive blasting applications. Our tough polyethylene helmet shell meets penetration requirements of ANSI Z89.1. It is also UV stabilized and abrasion resistant. Breathing air evenly flows throughout the helmet minimizing lens fogging and cooling the user. The lightweight helmet padding ensures comfortable and proper fit for workers.