The Profile Air Purifier purifies small rooms and is perfect for bedroom, nursery, kid's room, office or anywhere in the home. The included air quality sensor monitors and detects impurities and auto-adjusts fan speed to ensure air is always clean. Air Purifier has three layers of filter to purify the air: pre-filter removes large impurities like pet hair, lint, and more; high efficiency filter removes dust, pollen, allergens, and smoke particles; activated carbon filter removes odors and gaseous impurities. Purifier is lightweight and compact making it portable and easy to move from room-to-room. This ultra-quiet purifier operates at sounds as low as 25 dB, providing maximum comfort and minimum noise. Additional features include 4 fan speeds, filter reminder, 1-8 timer and child lock.