Good Morfnoevight All you happy stoners.
With the Heat Pump/AC system the house is closed air tight compared to running a swamp cooler. The air handlers work to keep the room a constant temperature by always running the very quiet and efficient fans. This constantly moves air through the fins. I usually exhale a pretty good cloud of vape smoke many times a day, it used to just get vented out, now it is running around in a circle until it gets stuck in the filter, fan and fins

So I bought one of these personal filters off Amazon. Works great but the longevity for me maybe a couple of weeks for $20. So I upsized for $40 I made one that will last a couple of years. I had a 6" hyperfan I was not using. I bought a 6"x8"x12" carbon filter, cut a water bottle attached a hose. I have a foot switch coming so it just runs when the peddle is held down.
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Wow, do you have several routes out? That would make my ass pucker.