Dornier 335
Well-known member
- Joined
- Aug 3, 2005
- Posts
- 1,089
That’s why you should never use mouthwash, toothpaste, or dental floss. You never know how those things will screw up the breathalyzer tests. Thats why my company prohibits flying within 24 hours after a dental cleaning.
I have a problem with that! Not with showing up 0.00%, but with the restrictions on what I can do and what I can't because of what a breathalyzer might show incorrectly. At my airline if you get randomly tested and you blow anything greater than 0.00% the breathalyzer shuts down and a second sample will be taken 15-20 mins after the first one. Mouthwash does cause an erratic reading, however; the measured BAC decreases quickly over time thus eliminates any false reading and values (that's the theory anyway!)
Bottom line is, if you are accused of having a BAC greater than the legal/company limit and you know it is because of mouthwash etc. request a blood analysis. That is medically speaking the only accurate way to determine the BAC.