WALL MOUNTED UNIT: Low noise level ,super quiet opertation.Special design optimize pitch fan with skew blades helps to reduce the noise level greatly. Rustproof of outdoor units. Streamline design of turbofan with large diameter lower noise by reducing fan speed.Timer operation.Intelligent auto mode and sleep mode operation function and 12-hour timer function.Adopt international famous-brand compressor ,which is just like a fierce efficient heart, implements the HF running after starting the machine,rapidly reaches the set temperature,therefore it is nature to save energy up to 30% from traditional air conditioner. Intellectual pre-heating: when the ordinary air conditioner starts,it blows out cold wind before reaching the setting temperature,so you may feel very uncomfortable during the cold winter,while BENDAO air conditioner blasts warm air only after heating.In this way,it avoids the above awful condition and cares you with great solicitude. FLOOR STANDING UNIT: Powerful air supply,strong operating,remote control optional.Adopt international famous brand compressor,enhance the efficiency of saving energy.Select aseptic evaporator,high efficient in cleaning dust.Powerful dehumidification,even in damp and raining season,still bring you springs in all seasons.Special design with elegant appearance,12-hour timer setting,strong heating and cooling perfomance ,with ?Economic? function ,more comfortable and more energy saving . Antirust of outdoor units,it still in operation in coastal area.