Testing Guidelines & Precautions

Testing Guidelines

  1. Wait at least 15-20 minutes after drinking, eating, or smoking before using the BACtrack Mobile Breathalyzer. Failure to observe this waiting period may cause inaccurate readings and damage the device’s fuel cell sensor.
  2. BACtrack View requires an active and stable internet connection in order for tests to be taken. Both Wi-Fi and Cellular Data connections will work. If you do not have a stable internet connection, your readings may not save properly.
  3. During the testing process, please remove anything that obscures your face (hat, sunglasses, etc.). While testing, hold your smartphone at eye level and look directly into the device’s camera lens.
  4. When you receive a test request notification, you will have a 30 minute window to complete the test before it is marked as “Missed”.


  1. Avoid using the BACtrack device in the presence of substances that contain methyl alcohol, isopropyl alcohol, acetone or any other substances that contain alcohol or similar substances, or ingest such substances 20 minutes before using the BACtrack device. These substances may interfere with test results and trigger a positive BAC result. 
  2. Prevent substances such as perfume, alcohol-based cleaners or hand sanitizers from being stored near the BACtrack device at ALL times.
  3. Do not test in areas where large amounts of alcohol are being consumed or in areas with strong winds, smoke, or chemical substances.
  4. Do not blow smoke, food, or liquids into the BACtrack device, as this may damage the sensor.
  5. Do not cover, hold, or obstruct the BACtrack device’s mouthpiece during testing or permit any item to block the user’s ability to breathe into the device.
  6. Do not use or store the BACtrack device in temperatures below 32 ºF or above 104 ºF.
  7. Do not tamper with, obstruct, or damage the BACtrack device.

NOTE: Typically, positive test results attributed to a foreign substance or outside agent will dissipate shortly after the initial test, and subsequent retesting will yield test results of 0.00 %BAC. In the event of a positive test result believed to be caused by a foreign substance or outside agent, the User should retest until there is a compliant result. 

Examples of common foreign substances that may influence test results include, but are not limited to: 

  • Cold, Cough, Allergy & Other Prescription Medications
  • Hand Sanitizers & Other Alcohol-Based Hygiene Products
  • Sunscreens, Lotions & Hairsprays
  • Perfumes, Colognes & Aftershaves
  • Mouthwashes, Toothpastes & Breath Strips
  • Household Cleaners & Disinfectants
  • Energy Drinks & Kombuchas
  • Salad Dressings, Soy Sauces & Vinegar