Aztech AirePuri AAP7680 comes with a comprehensive 8-stages purification, sterilisation, ionisation and humidification. With its smart air quality sensors, it could conduct a quick analysis of the current air quality with the use the colour indications to enable user to be aware of the real time air condition and changes fan speed according to air quality when the automatic function is activated. With its PM2.5 reader, it enables user to know the precise air quality in numbers. It also have an integrated Wi-Fi control which allow user to intuitively control the air purifier with their smartphone.Key Features: WiFi Control8 Stage Purification ProcessPM 2.5 ReaderTimer Function ( 1H 2H 4H 8H 12H)Digital Display with Control PanelAir Quality Sensor IndicatorAUTO Function4 Fan SpeedsFilter Replacement IndicatorWater Refill IndicatorSleep Mode StandbyChild Lock FunctionRemote Controllable (>6m)