Home Environmental Cleaning Systems it uses water as the filter--nature's best cleaning agent since the beginning of time. No more expensive filters that just clog or leak dust, germs, and bacteria back into your home. While removing things like cigarette smoke, foul cooking odors, pet odors and all other harmful particles floating in your air, you can use Thermax’s specially formulated oil based fragrances and/or deodorizers to leave a fresh sanitizing smell behind. It scents the actual air molecule so it will smell fresh and clean even hours after you turn the unit off. It will clean the air in a 800 sq ft rm. Your unit will include an 8 oz bottle of Aqua Blue Deodorizer & Mulberry, Eucalyptus/Menthol oils.