Hunter's Hepatech air purification system is 99.97% effective to 0.1 microns. CADR rating: Smoke 260, dust 260, pollen 260. changes air up to 6 times per hour in 19 x 21 room. 30% better odor reduction. Separate ionizer enhances air cleaning and freshens air

Attractive tower design. Quietflo is 99.97% effective to 0.3 microns. CADR rating: Smoke 200, dust 220, pollen 220. changes air up to 6 times per hour in 17 x 18 room. 30% better odor reduction.

Quietflo is 99.97% effective to 0.3 microns. CADR rating: Smoke 100, dust 100, pollen 100. changes air up to 6 times per hour in 11 x 13 room. 30% better odor reduction.

The Bell and Howell Auto Air Purifier removes contaminants like germs, bacteria, pet and smoke odors and leaves your car with fresher, healthier air. Plugs into car cigarette lighter. Pivots to 90 degrees

Prefilter for Whispure models AP250 and AP150