NewAir AC-12200E Portable Air Conditioner 12,000 BTU portable air conditioner cools up to 425 square feet Environmentally friendly and designed with an auto-evaporative feature 3 fan speeds and 24 hour programmable timer 3 in 1 design cools, ventilates & dehumidifies. Noise Level: 58 decibals. Dehumidifying Capacity: 4.86 pints This unit is equipped with "energy efficiency boosting" function, by adding 2.5 pints (1.2L) water to the water funnel at the side of the unit, the energy efficiency can be elevated