This Technology has been proven in University Studies Technology that duplicates nature is proven to work in the air and on surfaces in independent University published testing. I woke up the other morning and went to the Petri Dish I started in my home 48 hours before. I have had my unit running in my home . I took the test in my kitchen. I was amazed, blown away, stunned, and any other word you can think of to see not one single pod of mold, bacteria, fungi, or anything else growing in my Petri Dish! My house test came up visually 100% clean! I knew our products were good, but WOW! This is truly amazing technology. The combination of ionization along with the activated oxygen and the ultra violet light acts to kill all those undersirable odors and just like our larger units, this Econo Clean Air 1000 is designed to cover a smaller area such as a bedroom, etc. Place it in your car or even in the garage over night and see how well it cleans the air. If you like the larger units, this one is great to accent the other air purifiers but at a much smaller price. It is also very small, compact, convenient and simple to operate. Don't let it's size fool you. It is a powerful, easy to use, easy to move, room(up to 1,000 sq.ft.)air purifier unit.