The ATLS-303 is a compact and power efficient five stage filtration system equipped to rid the air of odors bacteria allergens and dust. Also boasting a 3 plate ozonator for up to 5000 sq ft of cleaning power. The ATLS-303 oxidizes the air with its onboard ozone plates and negative ion generator to significantly reduce chemical gases paint fumes smoke and bacteria particles in the air by decomposing and eradicating contaminants in the air. The UV light and photocatalyctic filter work together to neutralize molecules organic particles in the air which cause odors or could contaminate indoor air and aggravate allergic reactions. Coupled with the much powerful fan design and triple plate Ozonator this model can deodorize and keep the air your breath fresh and allergen clean. This compact and portable unit with its five stage filtration system helps kill bacteria with a UV light and a top of the line HEPA filter that will eliminate pollen bacteria and create clean breathable air in a 5000sq ft area. It also comes with a washable HEPA filter for your convenience.