You really need more than just an enclosed space. You need an enclosed space and a large amount of pot smoking going on. It is possible to get second hand exposure but it would require smoking 10 blunts or more (just an example) in a small minivan or air tight closet. Remember, exhaled smoke contains very little THC as it is almost instantly absorded by the lungs. Casual second hand smoke isn't going to show up and that is what most second hand smoke is, casual and insignificant.
FakeBoobsRule Reviewed by FakeBoobsRule on . Second Hand Smoke - drug testing......am I being overly worried? I have been clean for two months and will be drug tested in about 10 days. I'm not worried about testing positive from my own use, however, I live with someone who smokes at least once a day. When she smokes we always open the window, and I never find myself in a cloud of smoke. I get nervous I am inhaling small quantities of smoke on a consistent daily basis, and therefore slowly increasing the ng/ml of the THC byproduct tested for in UA. Is this a legitimate concern, or am I Rating: 5