How do you pass a swab test?

[ChefTim420]

My oldest son has an offer for a new job.He new about the test but assumed it was a piss test.He went and bought something to clear his system and noticed in the application that it was a swab test.I never heard of doing a. swab for thc.Any advice would be appreciated.He really needs the job.

[Weed420]

Doesn't need to be anything fancy. Just brush whole inside of mouth including tongue real well. Rinse mouth real good with a mouth wash. Try and manipulate the swab a little so it has limited contact with your inside of your mouth.
And rebrush and wash just before you walk into the lab.