Honeywell, Quietclean, Tower Air Purifier, With Permanent Filters, Captures Up To 99% Of Ultra Fine Particles Such As Smoke, Dust, Pollen, Mold Spores & Pet Dander, Permanent Filters Are Easy To Clean, Simply Rinse In Water, Washable Pre-Filter Captures Larger Particles, Whisper Quiet Operation, Energy Star Certified, LED Touch Button Control With 3 Air Cleaning Levels, Electronic Filter Clean Indicator, Oscillates To Disperse Cleaner, Fresher Air, AHAM CADR:110, Recommended Room Size: 12′ x 14′, 170 SQFT, 2 Pack, Odor Reduction Pre-Filter: HRF-B1 Or HRF-B2.