How to Pass a Breathalyzer Test
Understanding Breathalyzer Tests
If you’ve been ordered to use an ignition interlock device, such as those from Intoxalock, it’s important to know how to pass a breathalyzer test and avoid any issues that could lead to a failed test or lockout. Whether you're trying to start your car or preparing for a random breath test while driving, this guide will help you understand the process.
When is a Breath Test Required?
Breath tests may be required if you've been suspected or convicted of a DUI, OUI, or DWI-related offense. For suspected alcohol-related offenses, these tests can be conducted by law enforcement using a handheld breathalyzer. After conviction, you may need a car breathalyzer, known as an ignition interlock device (IID) installed in your vehicle.
Additionally, commercial breathalyzers provide a convenient, portable way to self-test your breath alcohol levels.
How Does a Car Breathalyzer Work?
An ignition interlock device, or car breathalyzer, is installed in your vehicle to measure your Breath Alcohol Concentration (BrAC) and ensure it's safe for you to drive. Before starting the car, you’ll blow into the interlock device to take a breathalyzer test. Random retests may also occur while driving to confirm you remain alcohol-free behind the wheel.
Different devices require different blow patterns to collect samples. Intoxalock uses a straightforward blow-inhale-blow pattern, which your technician will explain during installation. If your BrAC is below your state’s legal limit, the car will start. If it's above the limit, the vehicle won’t start until a clean breath sample is provided.
Learn About IID FunctionalityHow to Complete an Intoxalock Ignition Interlock Device Breath Test
Those with an ignition interlock device must pass a breath test before operating a vehicle. Follow these simple steps to perform a breath test on an Intoxalock ignition interlock device:
- Press the button on the handheld unit
- Wait until the LED displays “Blow” to push a consistent breath of air into the device
- Blow into the airway tube for the required number of seconds
- Inhale similarly through the same tube
- Finally, blow again into the device for the final time to complete the test
The interlock device should vibrate when you complete your submission. Your ignition interlock installer will train you on how to use your device and can help answer any questions you may have.
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Tips for Using Interlock Devices
Avoid Alcohol Before Driving
Alcohol can stay on your breath for up to 24 hours after drinking, even after small amounts. To pass a breathalyzer test, it’s best to completely avoid drinking if you plan to drive. This ensures you pass the breath test and promotes safer driving habits and compliance with your IID requirements.
Be Aware of Contaminants
Mouthwash, mints, and some foods can contain alcohol and affect your breathalyzer test results and cause a contaminated positive. Wait 15 minutes after eating or drinking before using your IID, and rinse your mouth with water to eliminate residual alcohol.
Know the Blow Pattern
Different IID devices require different blow patterns. Intoxalock uses the simplest blow pattern on the market, the blow-inhale-blow pattern. Practicing this blow pattern before blowing into a breathalyzer will help you pass a breath test consistently.
How to Sober Up Fast and Beat a Breathalyzer
Despite popular myths, there's no quick way to sober up or beat a breathalyzer test. Tricks like using mouthwash, mints, or hyperventilating will not lower your BrAC and can even raise it. The only way to sober up is to give your body enough time to metabolize the alcohol.
Tampering with or attempting to bypass an ignition interlock device can lead to serious legal repercussions, including fines, extended driving restrictions, or harsher penalties. The safest option is always to wait until your body has processed the alcohol.
Discover How BAC Really Works
What Happens If You Fail the Breath Test?
If you fail a breathalyzer test before start-up, your Intoxalock IID will not allow your car to start. Depending on your state’s rules, you may be asked to perform a retest after a short waiting period. If alcohol is detected during a random retest while you’re driving, the device will alert you to pull over safely, but it will not stop your car. Test results, including failed tests, are reported to the appropriate state monitoring authorities, which could affect your driving privileges.
If you encounter IID issues with your Intoxalock device, such as failed breath tests, lockouts, or any questions about how to pass a breath test, our support team is available to help. Contact us at 877-272-5195 or visit our website for troubleshooting guides, FAQS, and resources on how to properly use your device.
Get an Intoxalock IID Installed
If you need an ignition interlock device installed on your vehicle, give us a call at 844-793-6518. A state representative can walk you through the requirements in your state and will make sure you have everything you need for an appointment at an installation location near you.
