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Answers: i heard its 12 hours.

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Lot of factors involved: your weight, your tolerance, what you drank, how much u drank (obviously).
I've heard that if you use mouthwash it could trigger a positive reading.
I think its about 10-12 hours.

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10 hours maybe less depending on how much you drank

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i think about 10 hrs

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I believe it takes one hour for each unit of alcohol you have consumed to exit the body (So if you have drunk 12 units, it would be around 12 hours), although it depends on body weight and the individual person. Everyone's tolerance level and alcohol absorption rates are different.

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Yeah I'd go with an hour a drink plus a little extra depending on your weight and tolerance and what not.

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