Traps pollen?? pet dander?? bacteria?? mold spores?? dust mite debris and smoke particles</br>Allergen reducing filters</br>Average Filter Life: 6-12 Months Depending on Use</br>For use with Vornado AQS 500 Air Cleane</br>6-12 months of life depending on use</br></br>Product Description</br></br>The Vornado AQS 500 Filter (2-pack) was created with the allergy sufferer in mind. No cleaning or direct contact with used filters is required with Vornado's Air Quality System. Simply replace the filters (no tools required) when the change filter indicator light on the control panel is activated.</br><br/>http://www.amazon.com/gp/product/B000YDJNQA