How long does it take to eliminate alcohol?

Average elimination rates range from 0.010 to 0.020 g/210L per hour.  For example, an individual with a 0.10 Breath Alcohol Concentration (BAC) would reach a 0.00 BAC in 5 to 10 hours.

Are breath tests accurate?

Yes, breath tests are very accurate. The instrumentation is held to a standard of 3% or 0.003 g/210 L of vapor (whichever is greater) for accuracy, and 0.003 g/210 L of vapor for precision.