How do you pass a saliva drug test
These drug tests are harder to adulterate than the urine drug tests since the sample can be obtained under direct supervision.
The only way I know of is to buy a product designed just for that purpose. It's usually a mouth wash. Although your salivia regnerates itself fairly quickly, so it would be really hard to pass it.
To both the question and missjj07's answer/question - You beat drug tests by not doing drugs.
You don't do drugs.
Don't do drugs???