Window room air conditioners cool, dehumidify, and filter inside air. Heat pump and electric heat models offer both heating and cooling. Window units can be installed through the wall as well as double-hung windows. Room air conditioners are 100% Full Factory Run tested for reliability and dependability. Ball bearing motors help units to run quietly and start quickly. Slide out washable filter is easily accessed for cleaning. Hydrophilic coating on evaporator and condenser coils aids in better moisture removal, increased air flow, increased heat exchange, and higher efficiencies of up to 9.8 EER.