pureAir 500 transforms your space into a continuously fresh and clean environment, reducing airborne pollutants. Using advanced technologies including activated oxygen ozone, ionization and HEPA carbon filtration, pureAir 500 significantly reduces odors caused by bacteria, mold and mildew, as well as diminishing other odors, including those from pets, cooking and smoking. A small, sleek design makes it an elegant addition to any space and the touch controls allow for simple purification level adjustment. pureAir 500's operation is just as simple as its design choose the continuous setting green for a constant ionic clean or use the burst setting blue with automatically timed activated oxygen to deal with tougher odors. There's even an away setting red that deep cleans the air in your room while you're out running errands and the space is unoccupied.