I don't know how it is with swab testing, but with a urine test, if you don't hear anything by the 3rd or 4th day, your usually in the clear. You usually know if you're positive within the first 48 hrs. That being said, I don't know how long a saliva test actually takes.

In the meantime, I would abstain from smoking until you at least get your first paycheck.
SteelerCat Reviewed by SteelerCat on . Swab/Saliva Questions Hey guys, I applied for a job recently and was wondering about saliva testing. When I went in, I stopped smoking about 37 hours prior to the test (5 good sized bowls), brushed my teeth, used mouthwash, etc. I have a pretty fast metabolism (5 10, 125 lbs.) Prior to this I had been clean for 2 months naturally. The swab was attached to a sky blue stick that i was asked to just "place in my mouth". I stuck it partly on my teeth and in between my cheek, trying to get the least contact possible. Rating: 5