You may be familiar with air filtration systems, but the Airmaster Ultra is actually an air purifier. The diagrams below help explain the difference. Air filters are also called “mechanical filters.” They work by trapping particles that are too large to pass through (Fig. 1). They collect larger particles, but may not be as effective for many smaller particles. The filters must be changed on a regular basis, as they fill up with the collected debris (much like the bag on a vacuum cleaner).

Air purifiers, on the other hand, actually sterilize or kill most contaminants. Both UV and ozone are purification methods. In the Airmaster Ultra, when air passes within the UV light zone (Fig. 2a), most airborne bacteria and molds are killed or sterilized. From there, the air passes by the ozone lamp (Fig. 2b) where odors are neutralized. The process happens continuously and silently as your heating/cooling system runs, and there are no messy filters to change.