Is anyone aware of a sensor (preferably Zigbee, I think), that will give me an idea of when I need to change my furnace air filter?

I am picturing something that maybe sits on the “clean” side of the filter to measure…pressure? Air quality? I don’t know.

  • wetling@lemmy.worldOPEnglish
    3·
    10 days ago

    I read somewhere, the suggestion, that the filter be replaced when air flow has reduced by 50% from when the filter is new. IDK, that seems reasonable to me and should be measurable.

    I have always replaced filters on a schedule, but it has always felt wasteful. Sometimes the filter is clearly dirty and sometimes it is not. I would like something more specific.

    I will look into PMS7003.