$wife was getting super annoyed at having to smell a neighbor's cigarette smoke every time the window is open

so we've now spun up a wireless laser-scatter particulate sensor tied to outside air (<€30 in parts, thanks to ESPhome <3 and 6/8mm PVC tubing) which seems to detect within a second of it starting <333

graphs showing varying amounts of particulate matter, with a notable spike in values clearly visible above the background noise
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