This 12,000 BTU portable air conditioner is ideal for spot cooling or heating mid-sized rooms up to 450 Sq. Ft. With 3 cooling/heating settings, 3 fan settings, a 24 hr on/off timer, and dehumidify modes, this model is equipped to meet your interior climate needs. An Easy-To-Install Window Kit is included for exhausting the unit through any horizontal or vertical opening window. Maintenance is minimal with a slide-out washable mesh filter and Auto Evaporation technology that makes manual draining unnecessary.