DESC: This unit features a high Energy Efficiency Ratio of 10.7, Electronic controls with remote control, and Ionizer/Electrostatic Clean Air Filtration which is Relief for increasing numbers of allergy and respiratory ailment sufferers. Negative ion generators and electrostatic filter elements are used for air cleaning performance that is substantially higher than conventional filter methods. So when you are looking for a a unit which will clean the air as well as cool the room you found the one.