Easy - don't smoke weed
Listerene spray
You don't.
Drink a tall glass of urine 2 hours before swabbing
No, sorry
you most likely will pass
Mouth wash: Use it before the swab.
Swab tests are based on saliva, therefore you need to do a dry swab. Put the swab in an area of your mouth that it won't get wt in, these is tricky but doable. Pass them the swab, they'll test it not knowing any better seeing as how it was just in your mouth, and you'll pass the test.
Yes. It usually takes less 70 hours for your cheek cells to regenerate and get rid of the THC in your mouth.
you can pass an oral drug test with mouthwash
If you smoked marijuana, very likely not, but you never know. Other drugs i am not sure about
you can't.
There is only one way a person can pass a mouth swab drug test in the next 72 hours. This way would be to not partake in any drugs in which they do not have a legal prescription.
If you have not smoked for 30 days you will definitely pass the test.