Effects of Second Hand Marijuana Smoke

Compared to inhaling firsthand, the effects of second hand marijuana smoke are minimal. Once the smoke has been held in a users lungs, most of the THC available has been absorbed by the time it is exhaled. Anyone inhaling marijuana secondhand ingests a minimal amount of THC, causing at most a mild buzz similar to that obtained by smoking a cigarette. Because the effects of second hand marijuana smoke are so small, one should not expect to obtain a high from being in the proximity of those smoking marijuana. Nonusers who inhale marijuana second hand will usually pass a drug test.