Purification volume button: Select different cleaning levels from LOW to HIGH.
Eureka Instant Clear 26' NEA120 Purifier 3-in-1 True HEPA Air Cleaner with Carbon Activated Filter and UV LED, for Allergies, Pollen, Pets, Odors, Smoke, Dust.THE Ultra-silent Technology and User-friendly Sleep Mode offer you a quiet, dark, and comfortable sleep environmentThe Ultra-silent Technology is only 32dB on lowest fan speed so it is very quiet and produces fresh air without disturbing annoying noise! Eureka Air Purifier is very easy to operate, only 3 buttons will meet all your requirements about an Air Purifier. Easy Operation, Light Weight, and Convenient Grip Handle make it very portable.