The Comfort Aire wall mounted ductless mini-split heat pump systems (heating and cooling) are designed to be whisper quiet. The design keeps operational sound outside with the condenser while the indoor air handler remains much quieter. The sleek appearance of the indoor air handler blends with any decor. These systems are ideal for locations where it is too expensive or impractical to install ductwork, or where window air conditioning units cannot be used. They are easily installed in bedrooms, sun rooms, offices, arena skyboxes, and historical buildings.