Nakatomi X Uninex Indoor Outdoor KoolZone Mobile Spot Cooler SAC-1800 Portable Air Conditioner Industrial Grade 6,143BTU R410A Refrigerant Industrial grade, ETL certified, Reliable and safe R410A Refrigerant (Contains no ozone depleting R22 refrigerant which has been banned by the U.S. EPA in new equipment after January 1, 2010) No assembly required, Portable, Indoor / Outdoor Energy efficient, 1/2 ton cooling capacity, Noise level: 60 - 62 db Dehumidification, Built-in evaporator removes most condensate