Heres the real deal, ignore everything below me. I have taken these tests and done interviews with cops and drug specialists, and my mother administers these tests. If you are a chronic user, you can test positive in a saliva test for up to 4 days! But if you smoke rarely or occasionaly then it … Read more

When smoking marijuana, it all depends on how much you used. If you only smoked once then you really only need to wait 7-8 days to be certain. If you have smoked constantly and then stopped I suggest waiting 2-3 weeks.