Breath Alcohol Machine & Air Blanks

If you ever have trouble getting your Breath Alcohol Machine to produce a negative air blank prior to a test, it may be something as simple as hand sanitizer.  Other external items that may cause a Breath Alcohol Machine not to produce a negative air blank are Lysol spray, perfumes and colognes.  Breath Alcohol Machines are made to detect the slightest amount of alcohol, therefore making them very sensitive.

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