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.