CEE Using Up-graded Core Technology and Mew Innovations by AIRFARE] AIRFARE has launched convenient Duct! SCH-12. AIRFARE spot coolers operate in air temperature from 65°F to 104F These air conditioners utilize Eco-friendly R-410A refrigerant. AIRFARE 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.