Sensor to detect marijuana vape/smoke

[Hellmark]

So, I'm allergic to pot, to where I get anaphylaxis. This past year, I've had a few sudden reactions that have sent me to the hospital, from neighbors smoking close enough to the air intake, and from my teenaged niece that lives with me (who has thought that simply spraying enough perfume to cover it would make it ok). I was hoping to find a sensor that could detect it, because if I wait to when I can smell it then it is too late to stop a reaction.

Anyone able to point me in a direction?

[nagelc]

Sounds like a challenging problem. Maybe an air quality sensor would help? I don't know if pot smoke would trigger one of those at the levels you are concerned about. The BME680 is supposed to be a good sensor for air quality. I haven't used it, and some others on this site have not been that impressed. See this thread: https://forum.mysensors.org/topic/12197/best-voc-sensor-for-detecting-a-wide-range-of-voc-s

Maybe look at some law enforcement sites to see if there is anything they use (besides dogs : ).

[fsgraz]

@Hellmark I have a sensor with a dust sensor, and it detects sigarette smoke pretty well.
I use it in my RV and act on the fairing vents.

[pepson]

There are air quality monitors that can detect VOCs (volatile organic compounds), and some that claim to pick up marijuana smoke specifically. Devices like the Airthings Wave Plus, uHoo Air Sensor, or Plume Labs Flow could help identify changes in air quality. Another option is checking with industrial-grade smoke detection companies that provide sensors for businesses and schools, and some of them may also have solutions suited for home use.
If you want more information on vape-related products, including how they work and their components, check out Geek Bar Pulse X Platinum Edition. Understanding vape devices can help recognize patterns of use or detect scents earlier.

[devon333]

we’ve been using Triton detectors at my school for a while now, they catch both nicotine and THC vapor fast and it sends an alert right when someone vapes, even picks up small amounts. it’s probably the closest thing you’ll find for what you need.

[TerkumOsber]

This post is deleted!

[vivianbrock1987]

I have a severe allergy too, so I get it. For quick detection, look for industrial or school-grade THC detectors instead of basic air quality sensors.