【Quiet & Lightless For Better Sleep】- With 23dB Sleep Mode & Upgraded Light Sensor, Vital 100S make your sleep not be disturbed by noise and light. It will automatically limit Auto Mode to the quietest fan speeds and turn off display lights when the room gets dark. 【Pet Owner Friendly】- Unique Pet Mode Make Cleaning More Energy-Efficient (only available via Vesync app), and the U-shaped air intake smart air purifier catches pet hair and large particles more effectively than normal filters. 【Faster & More Efficient Cleaning Performance】– With CADR of 243 m³/h, Vital 100S smart air purifier cleans a large room size of 52m2 Twice per hour and a small room size of 21m2 Five Times per hour. 【H13 HEPA Filter & Washable Pre-Filter】- 99.97% Removal of 0.3 Micron Particles(Three-stage Filter). HEPA filter cleans pollen and dandruff, Activated-Carbon filter neutralises cigarette smoke and odours, Washable Pre-filter ensures a longer life of your HEPA & Activated-Carbon filters 【Accurate Air Quality Sensor】- Monitor Air Quality Via Colour Feedback (on the display of the Vital 100S or through Vesync App). The automatic mode will choose the optimal level in real time for you, or you can adjust the speed yourself accurately. 【Smart Control】- Everything Under Control by Alexa Voice Commands and Google Assistant or Use VeSync App. You can set timers、create schedules, check filter life and check the air quality index. It is recommended to replace the filter at least every 8 to 12 months. Colour White Brand Levoit Product dimensions 16D x 32.1W x 40.6H centimetres Floor area 52 Square Meters Specification met Energy Star Certified, CE Certified, RoHS Certified