Built-in UV-C disinfection lamp can effectively kill 99.9%^ bacteria in the air (*Turn off automatically after one hour of opening, you can re-open the function according to personal needs) H13 HEPA filter, professionally filter PM2.5 suspended particles, pollen, dust mites, aerosols, allergens Intelligent constant temperature, built-in constant temperature sensor to adjust the indoor temperature and achieve energy-saving benefits Air purification, cold and warm air are three in one, eliminating storage troubles All-round loop air supply, adjustable 80° automatic swing and 30° front and rear air supply angle adjustment Ultra-quiet design, silent operation as low as 40dB, bringing a quiet sleep environment Customize the switching schedule through the HKBN Smart mobile app, perform the preset mode according to the weather, remote operation and Cantonese voice control* Pixi beautiful design and Lausu/ Pisi App theme layout