To maintain best performance, the lamp module should be replaced after approximately 18-24 months. To replace the lamp module, unplug the Elite Air Filter from the wall outlet. Firmly grip the base with one hand and the lamp module with the other, and pull apart until the lamp module unplugs from the base. Firmly grip the base with one hand and the new lamp module with the other. Align the two components and push them securely together. HOW IT WORKS The Elite Air Filter uses an innovative process called photocatalysis to proactively purify your indoor air. The process utilizes a broad spectrum germicidal ultraviolet light and natural humidity to chemically react with the multi-metallic and titanium dioxide coatings on the target area. This reaction creates ‘cleaners’ (hydroxyl radicals and super-oxide ions) that are silently emitted into the room. These cleaners then destroy airborne mold spores, fungi, bacteria, odors and toxic chemical gases by an advanced oxidation process. Negative ions are also emitted to help settle dust particles away from your breathing space. Since the Elite Air Filter does not have to pull air into the unit like a passive HEPA filter, there are no filters to clean or replace and it is virtually maintenance free. To maintain best performance, the lamp module should be replaced every 18 to 24 months. AIR PURIFICATION The best way to purify the air in your home is to break down the space into multiple zones and place an Elite Air Filter in each one. Zone purification is far more effective and efficient than trying to treat an entire home from one location with a single filter or purifier. Each Elite Air Filter can effectively treat a zone up to 750 square feet! TEST RESULTS The Elite Air Filter was tested in a real-life home environment with 2 adults and 2 children in an area of about 750 square feet. To establish a baseline of contamination, the first 3 days of testing were conducted without using an air purifer. On the 4th day, an Elite Air Filter was plugged in and operated continuously for 6 days. The final results were 90% reduction of airborne mold and 77% reduction of airborne bacteria! Why not 100% you ask? Because new contaminants were constantly being reintroduced in this real-life environment.