Healthy negative ion: make your room full of an abundance natural negative ionsLeft&right flow: With specialized motor and flaps,the airflow can be adjustedDRY function: Make dehumidifying in the room when the unit is working in the "DRY" modeChild lock: Avoid the child's wrong operation on the remote controller3D air flow: The 3D airflow is able to deliver the airflow horizontally and vertically24 Hour timer: Use the timer function to set on,or off,or from on to off,or from off to onAuto restart: The function permits automatic return to previous peration conditionsEasy clean design: The panel is easy to wash and the airflow vents can be detached withoutany special tools for quick cleaning of the inside of the air conditionerIntelligent air: With twin-blade technology ,the airflow can be adjusted not to blow directly tohuman body,so preventing people from the air condintioner symptonAnti-mold filter: Catches most small particles and remove unpleasant odors effectivelySleep mode: The setting temprature and the indoor noise can be adjusted to a morecomfortable level when you set the "sleep mode"during night sleep4 Fan setting: Slect the fan speed LO,MED,HI,AUTOEntire auto mode: You can set a tempreture value,with which the unit can be adjustedtheoperation mode automatically2HSU-09(12)HA/HVA/RHA103/R2(DB) FeaturesDomestic air conditionerHSU-09/12HA103/R2(DB)HSU-09/12HVA103/R2(DB)HSU-09/12RHA103/R2(DB)