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

I have used these filters for years. They came with my air purifier and work so well, I see no reason to change.

Exactly what they advertised.

They’re ok, not original the ones that came with my air purifier are not as thick, they are softer, these work but seem to make my purifier noisier.

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!

The description is somewhat misleading as this is not a four pack but one large sheet which can be cut into numerous filters. It looks like you can get 10 filters out of this one sheet but you have to cut it with scissors to match. I took the old filter out, lined it up on the sheet, cut it and then placed it on the Velcro that exists on the inside filter. It’s easy to do but first I was confused so I wanted to write this review. The description is somewhat misleading as this is not a four pack but one large sheet which can be cut into numerous filters. It looks like you can get 10 filters out of this one sheet but you have to cut it with scissors to match. I took the old filter out, lined it up on the sheet, cut it and then placed it on the Velcro that exists on the inside filter. It’s easy to do but first I was confused so I wanted to write this review. This ends up being a great buy since you get 10 filters, not four, and prolong the life of your hepa filter inside.

If you think this is a replacement for the one that comes with your air filter you are wrong. This is filter cloth but it looks as though someone free hand cut it with scissors including the wrong angles and thin pieces hanging on the side from bad cuts. they also do not have the Velcro boarder that sticks it in place. does it get the job done yes. Other side is look how much you are paying for it because thats what you would be getting for that price. Works, ill probably buy it again but dont expect perfection.

Price is reasonable for a filter. An original one from GermGuardian is slightly overpriced. Red light was blinking after three months. I checked a filter. There were lots of dust and small light bright color particles on a filter. Check a photo. e.g.) I vacuumed my room every two weeks, so I didnt except there were lots of dust in my room I detached an original filter and replaced it with a filter by CFS. It was slightly longer than an original filter, but it did not have any problems for installment. After the replacement, I pressed a UV button for 3-5 seconds to reset a indicator (red to green). Please check all photos here.

These filters are perfect for my air purifier! They are thicker than what came with the actual purifier. I also take the vacuum and clean out the dust they catch which makes them last even longer! Will definitely buy again.

These are your basic charcoal filters. You do have to cut them to fit. I used them as a replacement for my air filter instead of the much more expensive ones. I change mine at least every few months. Not sure how long these will last, well see, but they are the same filters I used on my old Hepa filter and they did the job.

good service/delivery good product. thanks