GermGuardian FLT4825 True HEPA Replacement Filter for Model AC4825/AC4300/AC4800/AC4900CA/CDAP4500BCA, Filter B (2 PACK) True HEPA filter captures 99.97% of allergens. It helps reduce allergic reactions Activated carbon Pre filter to reduce household odors Long-lasting filter needs to be replaced every 6-8 months Not in color box packaging