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I was at a party where other people were smoking pot but I was not. Will passive smoke make you test positive?

The lab cut off numbers are set at a level of concentration high enough to ensure that passive smoke

will not cause a positive result. Yes, she may have some level of the drug in her system, but for

someone to test positive from passive smoke, they would have to be locked in a room the size of a

phone booth with 5-6 people smoking marijuana for 4 hours continuously. Passive inhalation will not

make you test positive.