by Smart Start | Mar 11, 2025 | Ignition Interlock Devices, Ignition Interlock Questions
Yes, it can. Many mouthwashes contain a high amount of alcohol—sometimes up to 27%—and that can trigger a failed Ignition Interlock Device (IID) test. Ignition Interlock Devices detect any trace of alcohol on your breath. Even if you don’t swallow it, mouthwash can...
