Allegro Industries, NV30-00HC, Nova 3 Helmet (Complete) w/Cooler, High PressureGeneral Description: Combines breakthrough protection technology with advanced comfort and functionality surpassing even the most rigorous industry standards. Designed to optimize safety and productivity as well as to minimize worker downtime, the helmet has a host of features that maximize its lifetime value. The Nova 3 is designed and engineered to distribute the helmet's weight evenly across the head and shoulders for optimum comfort and ease of worker movement, reducing fatigue. In addition, a ratchet-adjusted neck pad ensures your head is supported. The Peel Offs Lens System is a unique system of pre-folded tabs that allows workers to quickly tear off just one layered lens at a time. The helmet complies with ANSI Z87.1 for eye protection and ANSI Z89.1 for head protection providing a high level of protection for the worker. Approval No. TC-19C-456 (Use only Allegro approved airlines)Features:Wrap around wide angle inner and outer lens for wide field of visionRemovable lens frame with secured strong latchThe rubber window frame gasket provides a seal from dustMeets NIOSH requirements for sound levels inside the helmetMulti-layered sound dampening foam minimizes noiseHelmet is 4.0lbs (1.81kg) which makes for better comfort (4.8lbs (2.17kg) w/ breathing tube)28' (71.1cm) nylon cape to protect from rebounding abrasive5-3/8' (13.65cm) hanging strap on top of helmet for easy storage and cleaningDowntube:Non-toxic PVC inner and outer material33' (83.8cm) heavy duty abrasion resistant flexible breathing tubeLocated behind the helmet allowing it to be out of the wayInner Lens:High impact Polycarbonate (meets ANSI Z87.1+)12-1/2' (31.75cm) x 6' (15.24cm)Replacement inner lens available (PN NV37-22, 10 pkg.)Outer Lens:Clear co-polyester13-1/2' (34.29cm) x 6-7/8' (17.19cm)Replacement lens peel offs (PN NV37-25, 50 pkg.)Replacement outer lens available (PN NV37-24, 50 pkg.).