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 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.

This is my second order of these pre-filters. They work every time and always arrive undamaged and ready to use. I used to blow them off and keep reusing the same one but, for this price. Ill just keep buying fresh ones. These seem identical to the OEM ones but, way cheaper.

I bought these to replace the outer charcoal pre-filter for the GermGuardian AC4825. The filter is cut to the exact size and it sticks very well to the velcro. The material is at least twice as dense as the original filter so will definitely help to filter out more large particles. However, I do worry that the density of the material will put extra strain on the fan motor. I guess Ill find out. Photos 1 and 2: product packaging Photo 3: Original filter (left) vs this filter (right). Right filter is much more dense. Photo 4: This filter installed on top of HEPA filter (left), original dirty filter (right)

Price is good but too big for the filter so I recommend cutting it to fit the length. Also you should really buy the original hepa replacement once a year because it comes with the WHITE and the black filters that are meant for the filter to work well.

These work great for what I use them for, and the price is super reasonable.

I hadnt bought these because I hate how much money it takes to keep up with the HEPA filter in my filter-fan, but I indulged because my allergies have been so bad and I have a dog, plus I hoped these would lengthen the lifespan of my filter. They do! And actually, there are five of these in one box and theyre washable so you can make them last longer! Plus, carbon filtering is so good for you. Worth it.

I like that it seems to catch so much. I didnt realize I was breathing all that stuff Even my furniture stays cleaner from dust an pet hair