Breathe Naturally Universal 6x48 Cut-to-Fit Activated Carbon Filter (1 Pack) Charcoal Air Filter Sheet for Air Purifiers

Needed more of a sponge like. This is stiffer.

Good lord these work!Ok so within 2 minutes of putting these inside of two of my nice air cleaners every last smell and gas fumes from formaldehyde and benzene and the mold and all of the funky stuff in my mobile home is 100% gone and this is the first time in four years that I've been able to breathe not natural air so holy goodness gracious to the God Almighty and heaven thank you Lord Jesus! These do work.My old mobile home is got a lot of funky smells and keep in mind it is 100% clean but inside the walls is a lot going on so any of the gases are now gone! Woohooooo

The precut carbon filters for hooded litter pans can be pricey. This works great and you can cut to fit saving a few bucks.

Much less expensive than buying those pre-cut filters

These are thicker than the ones that came with the air purifier saving the more expensive filters. You could see thru the other carbon filters these you cannot.