Detecting the THC molecule in room air

Is there a material or chemical substance that would have a visable change of any kind when exposed to THC? For example-something I can put in a room and detect if anyone is smoking pot in that area?
 

berkeman

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Is there a material or chemical substance that would have a visable change of any kind when exposed to THC? For example-something I can put in a room and detect if anyone is smoking pot in that area?
Welcome to the PF.

It looks like there are lots of test kits for saliva and so on:

https://www.google.com/search?sourceid=navclient&aq=&oq=thc+detection+kit&ie=UTF-8&rlz=1T4GGLL_enUS301US302&q=thc+detection+kit&gs_l=hp...0i22i30l5.0.0.0.17866...........0.xeiN7_Wzs04

But I'm not sure what the best way would be for airborne testing. Does the room have a central air heating/conditioning unit feeding it? If so, you might be able to test the particulates caught by the filter...
 

SteamKing

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Most people use the Mark I Mod 0 Nasal Atmospheric Delivery System and Olfactory Sampling Device, or their nose.
 
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Most people use the Mark I Mod 0 Nasal Atmospheric Delivery System and Olfactory Sampling Device, or their nose.
The US border control and police have a device that can accurately detect trace amounts of drugs by sampling the air, and signals detection with a visible change. The device is a dog.
 

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