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View Full Version : Alcohol testing breathe tube


MM52
Jul 3, 2015, 02:45 PM
How long does (4oz) of alcohol take to clear your system for a alcohol breathe test? Is it the same amount of time as a urine test? (4 days)

ma0641
Jul 4, 2015, 09:46 AM
No. A breath test will clear in 4-5 hours based on what you drank, typically 1oz. per hour. However, 1 oz. doesn't tell the story since it could be beer, wine, low or high proof drink.