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When alcohol is consumed, it is absorbed from the mouth, throat, stomach, and intestines into the bloodstream.
As blood flows through the lungs, alcohol in the bloodstream moves across the membranes of the lung’s air sacs (alveoli) into the air. The concentration of the alcohol in the alveolar air is directly related to the concentration of the alcohol in the blood. As the alveolar air is exhaled, the alcohol in it can be detected by the breath alcohol testing device.
All data in this study was collected from the BACtrack Mobile, BACtrack's award-winning, police-grade smartphone breathalyzer and BACtrack Vio. When a user blows into BACtrack Mobile or BACtrack Vio, BAC results are wirelessly transmitted via Bluetooth® to an iOS or device. With the free BACtrack companion app, a user can get more than a BAC result -- they can track, save and share BAC results, call an Uber, and with BACtrack's ZeroLine® feature, get an estimate of when their BAC will return to 0.00%.
San Francisco-based BACtrack is the #1 selling breathalyzer in North America, offering a full range of innovative products for both personal and professional use. Founded in 2001, BACtrack helps people monitor their blood alcohol content and make informed decisions about alcohol consumption. BACtrack has won Popular Science's 'Best of What's New' Award for its innovation in health, a Good Design award for best in category for consumer electronics, and has been named the top breathalyzer brand by Car & Driver.
In 2016, BACtrack created the first wearable alcohol monitor, BACtrack Skyn, which won the NIH 'Wearable Alcohol Biosensor Challenge.' BACtrack products have been featured in USA Today, The New York Times, WIRED, Fast Company and other national and international publications. BACtrack products are available in 20 countries and at over 15,000 store locations including Walgreens, Costco, Best Buy, Target, Rite Aid, and Walmart. BACtrack products can also be purchased online at BACtrack.com, Amazon, Walmart.com and Target.com. Connect with BACtrack via Twitter and on Facebook. For more company information, explore our site, www.bactrack.com.