← Air purifier filters·HomeGermGuardianAir purifier filters: models and replacement parts for this brand.Search this categoryModels (25)AC4100AC4150AC4175AC4225AC4230AC4300BPTCAAC4820AC4825AC4825DLXAC4900CAAC5000AC5250PTAC5300BPTCAAC5350BAC5350BCAAC5350WAC5600AC5650AC5737AC5800AC5900CAAC5900WCDAP4500CDAP5200CDAP5500BCAParts (4)GUARDIAN-FLT4100FLT4100 HEPA + carbon comboGUARDIAN-FLT4825FLT4825 HEPA + charcoal comboGUARDIAN-FLT5000FLT5000 HEPA + charcoal comboGUARDIAN-FLT5650FLT5650 large HEPA combo