BreathScan Disposable Breath Alcohol Detector. Up to .08 BrAC (Breath Alcohol Content) The crystals are normally yellow. If there is any change in the color of the crystals after blowing through the tester, this would mean there is alcohol in the breath. If the crystals change to a blueish color, this means the alcohol in the breath is at .08 or above. The tester does not indicate higher than .08 and above. Easy to use!

Single BreathScan Refill

• Does not give a false positive and does not react to CO2 or acetone which are naturally occurring in human breath. Only reacts to alcohol.