Allegro High Pressure Nova 2000 Helmetâ"¢ w/Cooler The Allegro Nova 2000 Helmet is engineered with U.V. stabilized and abrasion-resistant high-density polyethylene. This super-tough helmet shell meets penetration requirements of ANSI 289.1, while also offering premium comfort with its lightweight, multi-layered sound-deadening foam padding, Velcro-mounted for easy removal and cleaning. The large double lens, with optional tear-out lenses, allows for optimum vision without irritating side glare, and the inner lens complies with ANSI standards for impact resistance. The air duct distribution diffuses breathing air evenly throughout the helmet, with the added benefit of preventing the viewing lens from fogging. Helmet includes a High Pressure Adjustable Flow Control Valve, Air Temperature Controller or Low Pressure Constant Flow Valve. The outer cape is secured by eight snaps sealed with an abrasion-resistant butadiene band, preventing abrasives from rebounding and entering the helmet. The detachable inner cape provides a barrier to airborne contaminates and is made of soft, breathable fabric to allow air flow down the neck, while maintaining positive pressure. Choose from the tough but lightweight nylon cape or the rugged and durable leather cape. Helmet is NIOSH-approved.Allegro Industries