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

I use this 24 hours a day

Easy to install and good to have on hand!!

I bought this filters to replace my AC4825 filters but I’m truly disappointed. First of all the quality is very low and the red light on my filter keeps blinking instead of resetting to green. On the product description, it says that it should work for this unit but it does not. I’ve had to put black tape on the blinking light. I don’t know if the blinking light will damage the system. If anyone knows how I can fix this problem, please let me know. Thanks.

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.

I developed a late in life allergy to my cats. So I bought two air purifiers that have filters. As we know, filters are ridiculously expensive. The air filters I bought came with these carbon covers so I immediately ordered this box of 4. I would say I change them every 6-8 weeks (at minimum) and so far I have been able to keep the filter clean enough that I have not had to change it yet!

These carbon filters are half the thickness of original ones sent with the hepa filter 2 pack...not what I expected.

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.

I have two of the Pure Guardian AC4825 Purifiers and change the carbon filters in them about once every 3 months. This 4 pack is perfect and fits without any problems or cutting. The price is also a lot better than buying the Pure Guardian ones.

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.

This is the best value for the pre-filters Ive found.