Known as a device used by common law enforcement, Breathalyzers can detect blood alcohol levels of suspected drunk drivers. As a fundamental rule, it is prohibited and illegal driving if your breath registers over .08% blood alcohol concentration level or BAC. But if you're under the age of 21, that threshold is lowered to .02%.A lot of kind of Breathalyzers are now being used. So I'm advising you now, don't drink and drive.
That's for your own safety, I'm telling you.
Breathalyzers | Different kinds