Germ Guardian FLT4825 HEPA GENUINE Air Purifier Replacement Filter B for GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA and More, 1-Pack, Gray

This fit great, and I will be buying more. It was the cheapest I could find that I knew would fit based off of other reviews.

Though they’re a bit pricey. Sigh. But they do the job and no one else will, my dog has zero interest in air filtration. He’s about the kong bone. Can’t say I blame him. Also these are easy to install and you can slip the old used filter in the box for easy cleanup as well. This is a concern cause you don’t want to drop a very used filter onto carpet, which I have in some rooms. That would be a very unfortunate outcome. That’s why it’s great to have a form fitting box to quickly toss the old filter in. One and done. That’s what I say.

Have used this in my mother in laws assisted living apt. She swears by it. Before she always felt she had allergies and it was dusty. Since we bought her this we have kept her in new filters whenever it tells us.

So super easy to change filter. Love it. Will buy again

I bought one of these a couple of years ago. It works! I have now added another one. Its giving me just as much help as its big sister. Same model.

Filters air very good. I have a lot less dust in my bedroom.

Filter didn’t last as long as they said it would.

Pricey but will purchase again.

Amazing product!

Says change filter when red light flashes. Red light continues you flash even after installing new filter. Why??