CAPTURES 99.97% OF ALLERGENS AND PARTICULATES* AND REDUCES VIRUSES AND BACTERIA.** With the Clorox 320 Large Room True HEPA Replacement Filter, you can breathe easier. It has true HEPA filtration to capture 99.97%* of particles as small as 0.1 microns and 2 additional filters to capture larger particles and odors. 3 STAGE 360° FILTER: Delivers 360° air purification by capturing allergens and particulates in 3 filter layers. The outside pre-filter catches large dust particles and pet hair, then the true HEPA filter captures 99.97%* of allergens and particulates. The active carbon filter reduces unpleasant odors to keep air smelling fresh. REPLACEMENT FILTER FOR CLOROX LARGE ROOM AIR PURIFIERS: Fits Clorox 1,500 Sq. Ft. Large Room Air Purifier model # 11010 and Clorox 1,500 Sq. Ft. Large Room Smart Air Purifier model # 11011. Includes 1 Clorox filter that lasts 6-12 months.*** FAST, EASY INSTALLATION. To install your new filter, turn the air purifier over and remove the filter cover. Lift out the old filter, replace it with a new one and put the filter cover back on — it's that easy. HOW TO KNOW WHEN TO REPLACE THE FILTER. After 4,380 hours of use (approximately 6 months), the red filter light illuminates to remind you that it's time to check and/or replace the filter. It is recommended that you replace the filter every 6-12 months. * 99.97% effective in capturing particles as small as 0.1 microns that enter the true HEPA filter. ** Reduction of viruses and bacteria as air passes through the true HEPA filter. Actual % of reduction varies. Does not kill viruses or bacteria. *** Cleaning effectiveness and filter life vary by air quality.