TRANE CleanEffects is a whole-house air cleaning system, meaning it works in conjunction with your heating and cooling system to remove up to 99.98% of airborne allergens—down to .1 microns in size—from every room in your home. After a pre-filter traps the large particles, the incoming air passes through a series of electrically charged corona fields which charge the airborne particles that are then collected in a patented, cleanable collection filter. With layers that are only 0.08 inches apart, the filter has 8 times the collection surface of a standard electronic air cleaner.