Airrex spot coolers operate in air temperatures from 68° to 113°F. These air conditioners utilize eco-friendly 410A refrigerant. Airrex spot cooler air conditioners may require a fresh air supply for proper operation. Includes removable, washable air filters for easy maintenance. Thermostatically protected compressor includes high and low pressure warnings. Moves easily on swivel casters (2 locking) and has a built in condensate pump. Airrex Air Conditioners from 10,000 BTU up to 145,000 BTU. The HSC-70 features 8″ diameter front cold air discharge and 16″ diameter top warm air discharge. Optional Warm Air Duct includes 8’L ducting and a 2’ x 2’ ceiling flange for warm air exhausting. ETL listed. 1 Year Warranty. 3 Year LG compressor warranty.