An ionizer emits positive and negative charges into the air, causing smaller particles to clump together. This process allows the purifier to catch a larger number of airborne particles.
Using the ionizer is optional. It can be turned on and off at any time on the 75i, 45i, FIT50, BreatheSmart Classic, and T500 purifiers. All current Alen units are equipped with an optional ionizer except for the BreatheSmart FLEX.
All Alen True HEPA Air Purifiers are ozone-safe, certified by the California Air Resources board to produce ozone emission concentrations less than 0.050 parts per million.
For more information: Ionic Air Purifiers & Ozone Air Purification Safety