Why YSK: Back in 2020 when Australia had our massive wildfires I still had to drive to work everyday in the smoke. I also went and got my car serviced around the same time and they showed me how dark my cars air filters had gotten after just a few weeks of those conditions. The air filters in cars aren’t designed to filter out so many particles so as soon as you can you should get them replaced.

  • Ladyface@lemmy.world
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    1 year ago

    This is also very true for the air filters on your home furnace/heat pump, if you have one. Even if you aren’t running the heat, if you are running the furnace/heat pump’s fan to circulate air periodically (which you should be doing to avoid stagnation), air is still passing through the filter. I live in the Seattle area, and our furnace filter comes out absolutely filthy black after every bout of wildfire smoke. It nasty.