Review on 🌬️ Enhance Indoor Air Quality with Aprilaire 401 Replacement Filter Purifier by Christopher Williams

I have purchased several of these oven filters over the years and they have all been of at least acceptable quality. The latter, however, is just plain ridiculous - there are little "cardboard" bits around the edges that should be sturdy enough that you can fit them into the case's little slots, but the "cardboard" is literally as brittle as laptop paper. and practically disintegrates in your hands. It's not even attached to the filter except in the middle. This makes installation much more difficult and troublesome. I think Aprilaire saves a few cents per item by making them so cheap, because who cares about the customers, right?