[Super High Efficiency Purification] As the latest generation of professional air purifiers for home, Crecolife HEPA air purifiers for bedroom have a CADR value of up to 450m/h, purify 403 ft in 12 minutes or up to 2015 ft spaces in 60 minutes (CADR: 450 m/h). The higher the CADR value, the higher the purification efficiency. Ideal for use in bedrooms, kitchens, living rooms, basements, offices and other large rooms. [Clean Air Guardian for Family] H13 True HEPA air purifiers for home adopt a 3-stage filtration system, including a pre-filter, H13 true HEPA filter, and charcoal filtration, which purify air particles as small as 0.3 microns, up to 99.97% removal rate such as smoke, pet hair, dander, pollen, odors and cooking smell. 360air circulation pet air purifiers for home is truly clean air guardian for family. (Note: if you need extra HEPA filter, please search " KJ402F " on Amazon) [Intelligent App Remote Control] Crecolife room air purifier, with Wi-Fi support and a dedicated app, enables real-time indoor air quality display. You can adjust lighting, timers, modes, and fan speeds remotely via smartphone while you're busy working. Intelligent App helps customize scheduling and control Setting from Afar, so you can purify the air in advance before arriving home. [Auto Mode with Laser Sensor] Crecolife air purifier for home large room features a Laser sensor, detects PM2.5 (particles smaller than 2.5 microns) with pinpoint accuracy. Real-time monitoring of air quality. Enter the Auto mode, the air purifier will automatically adjusts the fan speed according to the real-time air quality index, protecting your health and safety. [25dB Quite Sleep Mode with Timer] When in sleep mode, large room air purifier uses the lowest fan speed (25dB) to create a sleep-friendly space that?s as quiet as falling leaves. Timer can be set from 2-4-8 H on the control panel and 1-12H through the mobile APP