Stadler Form Viktor Air Purifier - Black Purifies air in spaces up to 540 square feet in size Eliminates expensive, bulky filters with the HPP Filter system- compact, durable, and washable Features a hidden control panel with dimmable LED lights for an undisturbed night of sleep 5 performance levels from ultra quiet to ultra power, giving you the control you need to create the climate you desire Suitable Accessories: Viktor Filter pack, or Stadler Form Pure Essential Oils Night mode (dimmable LED lights) Activated carbon filter HPP Filter System Fragrance dispenser 5 cleaning levels (very silent to powerful)