GermGuardianHEPA Pure Genuine Air Purifier Filter B, Removes 99.97% of Pollutants, Wildfire Smoke, Odors, for AC4825, AC4300, AC4850, AC4880, AC4900, CDAP4500, AP2200, Black/Yellow, FLT4825

Last year, I threw away my Honeywell Air Genius 5. As much as I liked it, it was frustrating to maintain and it had a mind of its own. I trust Peer Guardian products. I've had numerous humidifiers made by them so I bought the Germ Guardian AC 4825 to replace the Air Genius. Out of nowhere, about 6 months after buying it, it started flashing a red light to change the filter. Air Genius had a permanent filter. But don't fooled by the permanent filters, it's one of the reasons I got away from the Air Genius, the filter wouldn't clean properly. So, I knew the Germ Guardian had to have replacement filters but I hadn't bought any. I bought one of the generic versions here from Amazon and it's good but when I turn my purifier on, I love the fresh smell, it's probably not even noticeable to most people. The generic replacement filter never gave me the fresh air smell but it was doing a good job on everything else and at the time it was eighteen dollars less than the name brand, about a sixty percent difference in price. I need that fresh smell. I have a puppy that stays in my office and he's a little guy and he stinks. He can't help it. I give him baths but I think it's because he's so short, his belly hits the ground. I'm picking on the puppy. He has hair that sheds and sucks up any moisture so he don't really stink but he has his own unique smell. The name brand filters help with that and give me a more fresh smell in my office.This upgraded version is a perfect fit and it comes with an attached carbon prefilter. It goes right in, no problems and it brought the fresh air back. Simple, easy, change and I caught these on what I assume was a sale for right at twenty dollars, so I bought 2 of them. They are usually around thirty. I also recommend this purifier even over the bigger version and the other brands. I run it on the medium speed from the time I walk into the office until I leave the office. It's like flipping a light switch on. The room it's in is roughly 15 x 17 and it also keeps the air fresh in the 8 x 10 bathroom that's connected to the office. Not the funnest present to buy yourself but if you're like me, your nose and sinuses and stinky puppy will thank you!

Fit perfectly as it should since it's a genuine part. Functions as expected. Really filters well. When I saw the old one which was in for roughly six months....Yuck! I had to get a new one and only go for the one made for the machine. Would recommend highly.

Keeps the air in my house clean. Especially on those smoky days.

Seems great, hopefully doing its filtering job well, no sign of issues.Other aftermarket filters I've had and used require cutting and sizing and separate pre filters and main filters. This was an all in one cartridge type preassembled unit that seemed well made and snugly fit as I would expect

We bought the GermGuardian Genuine HEPA PURE Replacement Filter B for our air purifier, and it has been excellent. It fits perfectly in our AC4825 model and was very easy to install — just a quick swap and it was ready to go.The air quality noticeably improved right after we replaced the old filter. It captures dust, allergens, and odors really well, just like the original filter. Plus, knowing it’s a genuine replacement gives us peace of mind about the performance and durability.Overall, a great product that keeps our purifier working like new. Highly recommend sticking with the genuine filters for the best results!

Continue to buy for our air filter!

Great filter.

I've been using these filters for years. We live in a community still in development. Lots of construction brings LOTS of visible dust and who knows what fine particles we can't even see! These filters do a great job of silently cleaning away all that and cycling clean air back into the room.