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.

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