Vornado Replacement AQS500 Air Purifier filters (2-pack)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Traps pollen， pet dander， bacteria， mold spores， dust mite debris and smoke particles</li><li>Allergen reducing filters</li><li>Average Filter Life: 6-12 Months Depending on Use</li><li>For use with Vornado AQS 500 Air Cleane</li><li>6-12 months of life depending on use</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51g089cuOvL.jpg" noproxy>