The Solstar ASU12TSS indoor unit fan and compressor will operate to maintain the room temperature and provide comfortable sleep. Power Cool disperses air evenly at high speed to ensure the room is optimally cool. The Anti Corrosion layer prevents the surface of the heat exchanger from corrosion and wear. The design is an anti corrosion coating on the surface of the heat exchanger. This ensures that the surface is more resistant to corrosion and enhances the durability of heat exchanger for a much longer period.