How to pass a breathalyzer test

Whether you’re interested in how to pass a breathalyzer test for the first time or if you have an ignition interlock device installed in your car, the answer depends on your state specific laws.

Know the laws in your state:

Each state has different BAC (blood alcohol content) limits for drivers. While for a first drunk driving offense the limit tends to be .08 in the majority of states, and .05 in others, this limit changes if you currently have a restricted license and are required to have an ignition interlock device installed in your vehicle. You can check your states laws by going to the state requirements page and entering your zip code or by clicking on your states name at the bottom of the page.

Give clean samples:

False positives are something that can happen if you’ve eaten or had anything to drink before blowing into a breathalyzer. To prevent this from happening, it’s important to wait 15 minutes after eating or drinking before giving a sample. Using mouthwash can also cause your breathalyzer to register a BAC level. On top of waiting 15 minutes after eating and drinking, rinsing your mouth with water before blowing into a breathalyzer will help to ensure an accurate sample.

Know the blow pattern:

Different breathalyzers utilize different blow patterns to collect samples. Intoxalock’s breathalyzer uses a blow-breathe-blow pattern. This requires the person providing a sample to blow into the mouthpiece for three seconds, then inhale through the mouthpiece for three second, and finally blow back into the mouthpiece for a final three seconds. Other companies require this and that the person hums at the same time.

With an Intoxalock device, you will never need to hum to pass a breathalyzer test. The more complicated the breathing pattern the higher the chances are that the person giving them will experience human error. This human error can lead to the breathalyzer registering a missed test which could negatively impact the person giving the sample.

You can learn more about Intoxalock’s easy-to-use ignition interlock devices and how to use them here.