What can help pass a mouth swap test for THC?

Saliva Drug Test samples can be collected anytime, anywhere and without the need for special collection facilities. Saliva tests are poorly sensitive to THC and detection times can vary considerably based on the cutoffs used. However, there is significant local absorption of the drug in the oral cavity which increases the concentrations for a period after use of drug. In some cases drug use may only be detectable for a few hours but also for 5 - 12 weeks.