JUNHUI Air Purifier Filters Compatible with GermGuardian Air Purifier AC4825 AC4825E AC4300BPTCA AC4850PT AC4900CA CDAP450 Replacement FLT4825 Filter B 1HEPA Plus 4 Carbon Filters

JUNHUI  Air Purifier Filters Compatible with GermGuardian Air Purifier AC4825, AC4825E, AC4300BPTCA, AC4850PT, AC4900CA, CDAP450, Replacement FLT4825 Filter B, 1 HEPA + 4Carbon Filters 1) Remove back cover and discard used filter set.  2) Install with arrow pointing towards unit. Charcoal/Pre-Filter should be visible while cover is removed.  3) Be sure filter is pressed fully forward.  4) Replace back cover until it snaps into place. If the device will not power on, reseat cover.  Germguardian is registered trademarks of the original manufacturer. This product is high quality aftermarket filter produced by JUNHUI . Any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility.