The Frontier industrial SCBA from Avon-ISI features a simple design, comfortable backframe, and non-complicated components for ease of maintenance. The facemask provides a 10,000-to-1 protection factor, delivering high flow rates with a positive pressure, on-demand, compact demand valve. Quick release cylinder band allows for easy cylinder exchange.Avon-ISI, www.intsafety.com, (888) 474-7233