Unlike urine drug-testing, saliva drug-testing cannot see the metabolites that are in your system for as long a time. Saliva reflects what is in your blood. Your body works hard to keep your blood as clean as possible, putting impurities into storage in your fat cells and then excreting them through your sweat and urine. So to prepare for a saliva-drug-test it would be wise to drink lots of water and to sweat.
Methamphetamine can show up as positive in a saliva test for between 2-5 days (ish).
you can pass an oral drug test with mouthwash
Nope, it stays in you for 48 hours.
If you can't spell it, don't smoke it.
by spraying it
Thirty days.
no it is not
Simple, don't smoke.
Keep up what you are doing and you should pass the test. One smoke though, and you're down the hill.
They pass through mouth to the pharynx which is connected with trachea
Maybe and maybe not. THC is fat-soluble, so it can hang around in the body for a long time. If it was a one-time thing you'll likely pass; if you're a chronic smoker you might not.
the esophagus
The only way to pass a mouth swab for alcohol is to not have any alcohol in the system.