Bests & Worsts Reviews from Amazon

We buy a lot of furnace filters and have used expensive as well as inexpensive brands. Had not tried the 3M Filtrate brand because it was usually out of our price range. So when I found them at a reasonable price on Amazon I bought a half dozen. They are the cheapest, flimsiest, gnarled up mess of filters I have ever bought. No cross bracing to keep the filters from bowing or give you a hand hold to insert them. And because they are so poorly supported none of the filter material ripples (ridges) are straight or even. Whether that will impact their filtering capability is yet to be seen. Certainly not the quality you would expect from a 3M product and not a purchase we will make again.