185
people found this helpful, as of 2023
ranked #182,066 most helpful
out of 571,544,897 reviews
★★★★★
Kind of disturbing how dirty this thing gets after a few months of use
Starts off white, ends up turning black!
Kind of disturbing how dirty this thing gets after a few months of use.
Photos show about a two month use of the filter. Front and back difference.
the product in question
GermGuardian Air Purifier Filter FLT4825 Genuine HEPA Replacement Filter B for AC4825, AC4825E, AC4300BPTCA, AC4850PT, AC4900CA Germ Guardian Air Purifiers
4.8★ · 38,915 ratings, as of 2023