Designed to meet the requirements of a POA as per 42CFR part 84 as well as delivering cooler Grade D Breathing Air to two users. The POA/Cooler also allows for individual pressure adjustments which allow for different hose lengths (100 feet max) and respirator types. It’s designed to meet the NIOSH requirement for point-of-attachment. Housed in a rugged and durable pelican carry case that can be wall-mounted Includes two adjustable pressure regulators, two pressure gauges, and a pressure relief valve Maximum regulator inlet pressure is 125 psi. Capable of cooling breathable air by up to 20? F depending on inlet temp, Breathing Air temp, and hose length Maximum length airline hose to use is 100 feet Vortex cooler is made from a non-toxic engineering plastic and includes an adjustable brass valve for temperature adjustments