1. Efficient Particle Filtration: air purifier uses filter, which can effectively filter particles larger than 0.3 microns, such as Smoke, Pollen, Dander, Hair, Smell. no need to worry about air quality problems anymore, just turn on the product and enjoy a healthy life.2. High Circulation Rate: The purifier adopts dual-channel technology and 360-degree air outlet, refreshes the air 5x per hour in rooms as large as 215 ft / 20 mcover. No corner is left untouched, we will guard your health.3. Low Decibel Operation: Turn on the sleep mode of the purifier and the fan will be reduced to the lowest speed. You won't hear sound anymore, but the purifier is really working. Filtered air noise is as low as 22db, for a quiet and soothing indoor environment.4. With the flow of the fresh air, the will follow it to circulate to every corner of your room. The air that the family breathes is not only healthy and comfortable but also fragrant.5. Notice: Our machines are set up with a cartridge replacement reminder, the red indicator light will turn on when the purifier has been in use for more than . For the health of you and your family, we recommend that you replace the filter cartridge once every 3-6 months. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.