Carbon Activated Pre-Filter 4-pack for use with the Germ Guardian FLT4825 HEPA Filter, AC4800 Series, Filter B By Complete Filtration Services

It’s super subjective to rate a filter without a control point. It might work. Didn’t die yet, so it’s alright.

Works fine but needs to be changed frequently. Like once a month maybe. Otherwise its gets blocked and the noise level increases

This toilet bowl cleaner is the bomb. It makes it much easier for me to clean the toilet. It has enough cleaner that I can clean 2 toilets with one wand.

I change this every month. Between dust, dog hair, etc. it gets pretty full by the end of the month. Seems to work.

So, let me start with a little background. I have 2 dogs and 2 cats at home. The dogs track in a lot of dust from being outside and we have 2 litter boxes constantly in use. So my air purifier is constantly working. Anyway, i ordered this 4-pack to replace the single black filter that came in the original. These ones were definitely thicker and the size was *almost* the same. These were about a centimeter too long. However, i used regular scissors and then they were perfect. They seem to be working just like the original. It still sucks in the odors, fur, and dust like the original. It already has a tan color on it because of all the dust and its only been a few days. (yuck!) Overall, this is a great deal and just needs a minor and simple modification. I dont think spending 3x more for the other filters would have been worth it. Overall, Id recommend.

I bought this to go with the filter that it lists in the title but I had to cut it to fit the filter. Not completely compatible

I recently purchased a replacement HEPA filter for my GermGuardian and didnt realize that it also came with a carbon activated pre-filter, so I also ordered this 4 pack. The quality is the same as the one that came with the GermGuardian branded HEPA filter, although the sizing was a bit different. I do not think I would have a problem fitting this into the GermGuardian, but they are also easily altered simply by cutting them with a scissors. As I had 4 more carbon filters than I needed for a while, I used two of them for another separate air conditioner; I cut the filters to fit and inserted them behind the mesh filter in front of the rear air intake, effectively adding an additional filter where there was none from the factory. As the air conditioner runs 24/7 in the summer, I now had the added benefit of extra air/odor filtration, and the room smelled noticeably crisper. These filters will work for your GermGuardian and are a good value, but be aware they can also be reconfigured for other applications where you might need a carbon filter. I even saw a picture on a website of someone who had attached them to the rear of an oscillating fan to help with filtration! Excellent for multipurpose use.

Work amazingly well and killing odors - even cat box odors. Once you the the filters - keep in mind you can cut them to fit other brands and sizes of air filters. I easily placed one in a brand of air cleaner that is no longer made - works great!

Needed for my germ guardian hepa filter. It was a great buy

These carbon filters came in a 4 pack for the GermGuardian FLT4825. HEPA Filter will last alot longer when using these prefilters. Excellent fit, and arrived quickly. Thank you Amazon seller for great service!