EXAIR HazLoc Cabinet Coolers have achieved the UL-classified designation for Division 1 environments. They have been tested by UL and passed its stringent requirements for use upon classified purged and pressurized electrical enclosures within Class I Div. 1, Groups A, B, C and D; Class II Div. 1, Groups E, F and G; and Class III environments. The cooling capacity of up to 5,600 British thermal units per hour is ideal for electrical enclosures with problematic overheating.