Breathe Naturally Universal Cut To Fit Activated Carbon Air Filter - Replacement Charcoal Air Filters - Carbon Filter Sheet for Air Purifier, Vent Filters & More - Made in USA (Pack of 2, 16x48)

Love these carbon filters. I cut them to size and use them in my hepa air filter and also used them this summer on our window ac units when the wildfire smoke in Superior Wi was really bad. You could barely breathe outside some days, but couldn’t smell the smoke at all inside the house!

Works good, efficient

My review is not completely negative, but this product did not work for me. For context, I live in a small apartment with a small central air unit. I kept getting gunk that was coming out of the air vents, so I ordered these. They were very easy to cut and install, and they can be cut to whatever size is needed. They worked very well for their intended purpose of removing dust and bad smells. I did end up removing them, only because even though they were pretty thin, they reduced the airflow in the apartment by a ton and caused heating and cooling issues. If that’s not an issue for you, I highly recommend this product.

It came on time. Great value compared to previous framed filters. I will get at least 5 applications with this purchase.

A great product that is as advertised.

I got this because the filters for my Broan range hood, which is not vented outside, are no longer available (NLA) anywhere. (Filter model Broan 88F). So I pulled out the old oily filter media from the plastic filter holder and replaced the filter media with a double layer of this activated carbon - containing material. It works great! Big bonus: it's much better than the original at trapping smoke from cooking. I can now sear steaks without setting off the smoke alarm. I don't even have to open the windows, door and skylight, which used to be necessary.

The product description was incorrect. This product is not .5 inches thick, it is 1/16th inch thick

Carbon fibre pre-filters do a great job of minimising odours and catching material allowing your expensive HEPA filter to last longer by filtering out ultra small particulate matter. Without a pre-filter it clogged up very fast so this saves you money in the long run and it’s easily washable.

Normal quality

Work as advertised and the customization option is useful

We have a neighbour below us who has cats. The smell of cat litter comes up through a vent that lets out onto the landing of our stairs to the second floor. It's relatively subtle, but definitely there. I cut out a piece of this filter and fit it behind the grill of the vent. We now never notice the cat litter smell!

Très mince mais ça va faire l'affaire

Easy to cut and install. The carbon helps to reduce odors which was helpfull since both air conditioner units have not run since 2009. Have enough left over to put behind the furnace intake and be able to do this again when it's time.