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Is there a difference in performing a passive test and a direct breath alcohol test?

April 26, 2017alcohol breath passive Performing Test

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Is there a difference in performing a passive test and a direct breath alcohol test?

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• When performing a direct breath alcohol test, the subject blows directly into the testing instrument using a mouthpiece. When performing a passive test, the device is held in front of the subject as they are talking, or they are asked to blow at the device. No mouthpiece is used with a passive device.