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Beyond the Rumors: IID Myths Vs. Facts
When it comes to ignition interlock devices (IIDs), also known as car breathalyzers, there’s a lot of misinformation out there. Whether you’re required to install one or just curious about how they work, separating truth from fiction is crucial. Below, we debunk 8 common misconceptions to help you better understand IIDs.

Ignition Interlock Device Myths and Facts
Myth 1: IIDs are only required after a DUI conviction.
Fact: While DUI convictions are the most common reason for IID installation, they can also be installed voluntarily. Some individuals choose to install an IID as a preventative measure to ensure accountability and maintain sobriety.
Myth 2: Using an IID will damage my car.
Fact: IIDs are professionally installed by certified technicians to ensure your vehicle is not damaged. The wiring integrates seamlessly with your ignition system and is restored to its original state when the device is removed.
Myth 3: Mouthwash or certain foods can cause false positives.
Fact: Some mouthwashes and foods do contain trace amounts of alcohol, which might affect your test if used right before you blow. However, waiting 10-15 minutes after consuming these items and rinsing your mouth with water can prevent false positives.
Myth 4: You can trick the IID with items like mints or compressed air.
Fact: Modern car breathalyzers use advanced technology to detect and analyze breath samples accurately. Tricks like mints or air compressors won’t fool the device, and attempting to tamper with it can lead to penalties or violations.
Myth 5: Someone else can blow into the device for me.
Fact: Even though someone else can blow into your IID, the device will ask for a retest after a few minutes, and even several times if necessary; you are likely to fail these retests if you have been drinking. In some states, IIDs include cameras to verify the person taking the test is the driver.
Asking someone to blow into the device for you is tampering, which is illegal and can result in severe consequences, such as program extensions or additional fines.
Myth 6: The program is too expensive for most people to afford.
Fact: While there are costs involved, including installation and monthly fees, many providers offer flexible payment plans, special offers, and state assistance programs to make the costs more manageable. The cost of a car breathalyzer is far less than additional legal fees or losing your driving privileges.
Myth 7: I’ll have to use an IID for the rest of my life.
Fact: The duration of IID programs varies by state requirements and offense. Most programs last between six months and three years. Once you successfully complete the program, the device is removed, and you regain full driving privileges.
Myth 8: The device is confusing and difficult to use.
Fact: Modern IIDs are designed to be user-friendly and straightforward. Certified technicians provide clear instructions during installation, and most devices require a simple inhale-exhale pattern to complete the test.
Ignition Interlock Devices Made Simple
Ignition interlock devices are crucial for promoting road safety, deterring impaired driving, and restoring driving privileges responsibly. Knowing the facts can make navigating the process much easier.
Facing IID requirements? Choose a reliable provider such as LifeSafer® with transparent pricing and top-notch customer support to ensure a smooth experience. Contact us today to get back on the road quickly and safely.