Specification:Superior particle removal. Cutting-edge VitaShield IPS purification technology is proven to reduce 99.97% ultrafine particles as small as 0.003 microns (800 times smaller than PM2.5), including viruses, bacteria, pollen, dust, and pet dander. It provides a superior particle clean-air delivery rate (CADR) of 250 m3/h. In a room of 30 m2, it can purify the air in less than 17.3 minutes.Hygienic humidification. NanoCloud technology uses a natural and hygienic evaporation process to ensure superior performance up to 500 ml/h. Once the water is evaporated, the water mist becomes invisible and the smaller molecules are less able to carry bacteria into the air. Our laboratory testing confirms that NanoCloud technology spreads 99% fewer bacteria than leading ultrasonic humidifiers. It also prevents wet spots and white dust.Reduces bacteria and viruses. Optimized purification function effectively detects and reduces bacteria and viruses, such as H1N1 (influenza), for cleaner air and a healthier home.2 usage scenarios. Switch between 2-in-1 and Purifier Only modes at the touch of a button. Choose 2-in-1 for cleaner air without dry air discomfort during dry seasons. Purifier Only mode turns off the humidification function when it isn't required.Indoor PM2.5 numerical display. A professional-grade sensor with AeraSense technology accurately detects and quickly responds to even the slightest particle change in the air, providing reassurance with real-time PM2.5 feedback.Indoor air allergen index. AeraSense technology detects your indoor air allergens and displays the potential risk level of the air allergens on a scale from 1 to 12.Indoor humidity visualized. The digital display gives real-time relative humidity levels in the room, enabled by a smart humidity sensor, which also enables the appliance to automatically manages the humidity level.Connected to Clean Home + app. Using the Clean Home + app you can control your air purifier anywhere, anytime. Check the air quality in the app to get reassurance wherever you are, and to compare your indoor air quality with the outdoor air quality. You can also use the app to change the fan speed and to check the filter status.3 auto modes. This product has 3 automatic purification settings: General mode, extra-sensitive Allergen mode, and Sleep mode. In Sleep mode, display lights are dimmed and the fan switches to its lowest speed. Choose a mode to optimize performance to suit your needs.4-level humidity settings. Maintain a constant humidity level with the automatic humidity settings. Choose 40%, 50%, or 60% as your target humidity level, and the humidifier will automatically turn on or off to reach the desired humidity level.