WINDCHASER WHRP Home Comfort Station 3-in-1 unit automatically dehumidifies, humidifies, and cleans the air Reciprocating compressor with automatic defrost; DEW filter pad eliminates bacteria 3-liter water-tank capacity; overflow protection; convenient indicator lights Works in spaces up to 27 by 27 square feet; durable casters for easy mobility Measures 11-4/5 by 25-1/5 by 20-4/5 inches