I bought furnace filters in bulk. But my furnace is dead and had to be replaced. The old filters will no longer fit. The filter size is not all that common. I wonder if there are other use of the filter besides trying to sell them or give them away?

  • Funny that OP specifically said "besides trying to sell them or give them away", yet each answer suggest one of those options.
    – Tester101
    Oct 3, 2017 at 14:31
  • Funnier still that the OP doesn't consider those options acceptable. I'm curious why.
    – isherwood
    Oct 3, 2017 at 14:33
  • @Tester101 - The question is not opinion based, while there could be multiple uses that does not define an opinion. You are correct about the suggestions - because the context of the question: the intent was they preferred to use them and not trash them. So providing an answer that had both components - the fact that there really are no alternative uses for them, and that they could alternatively 'use' them by donating them to a place that will resell them or install in houses they build - seemed a fair answer.
    – Ken
    Oct 5, 2017 at 7:11
  • @Ken There's a guy on YouTube, that uses them for dust collection filters. There are probably a ton of alternative uses, and listing them all here as separate answers is not useful.
    – Tester101
    Oct 5, 2017 at 14:47
  • @Tester101 - post the answer (it is not an opinion - just one use).. Although I will say that is one expensive time consuming replacement for an ordinary dry shop vac with a filter. IMO he over thought that one a bit. I want to reuse a $10 filter let me spend $500 to do it and why because I can. Cheers :-)
    – Ken
    Oct 5, 2017 at 16:53

1 Answer 1


While there might be other uses for them , typically in your home there is not a real alternative use.

Drop them off at a Habitat for Humanity Restore store.

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