Genuine Cuisinart PuRXium Replacement Filter For CAP-500C Air Purifier

These filters captures up to 99.9% of airborne particles 0.1 Micron or larger. This includes airborne bacteria and various contaminants. It contains a H13 high-grade HEPA filter & active carbon filter. CLEANING AND MAINTENANCE The air purifier will automatically tell you when it's time to replace the dual-action HEPA H13 and active carbon filters on the unit. The filter replacement light will illuminate in red after 2,500 hours of continuous use. The H13 high-grade HEPA filters should be vacuumed once a month for the air purifier to perform at its best. If the air purifier contains dust or pet dander, it's best to clean the removable metal pre-filters more often than once a month to maintain 2,500 hours of filter life. The metal pre-filters are to be hand-washed only. If the filters are fairly clean, wash each filter with soapy, warm water. If the pre-filters are very dirty, you may need to use a soft brush to gently clean them.