4 Packs FLT4825 HEPA Replacement Filter B Compatible with AC4825 AC4300 AC4800 AC4900 AC4850, 4 True HEPA Filters & 6 Activated Carbon Pre-Filters

Fits perfectly and is working well

My GermGuardian air purifier will not even turn on with these filters in place. When I put the old filter in, it works immediately (but the old filter needs to be replaced, which is why I bought these). Do not buy.

Easy to order, easy to install, and easy to use.

Easy to install and came with extra charcoal filters

these are great filters and they cost much less than the name brands, used them a few times now and saved $$$

Bought these filters as replacements for Germ Guardian purifiers. Great quality and they fit perfectly! Thanks

The fold of the filter is much wider than that of the original manufactures. This allows more particles to pass through. The filters will need to be replaced twice as often, making the cheaper than the OM price irrelevant. I guess you get what you pay for. I will not be purchasing these again.

These come with extra carbon filters. Great price and great quality.

Breathing better

Work it