If you haven't consumed any alcohol today and you blew a 0.04% on a breathalyzer, there could be several possible explanations for this result:
Calibration or accuracy issues: Breathalyzers can sometimes give inaccurate readings due to calibration problems or malfunctions. It's possible that the breathalyzer you were using was not properly calibrated or maintained, leading to an incorrect reading.
Mouthwash or certain foods: Some mouthwashes and foods contain small amounts of alcohol, and these substances could potentially lead to a positive breathalyzer reading even if you haven't consumed any alcoholic beverages.
Residual alcohol: Alcohol can remain in your system for some time after consumption, and it can be detected in your breath. If you had alcohol yesterday or even several hours ago, trace amounts may still be present and contribute to the reading.
Health conditions: Certain medical conditions, like gastroesophageal reflux disease (GERD), can cause alcohol from your stomach to be released into your breath, leading to a positive breathalyzer result.
Interference from other substances: Some substances like paint fumes, cleaning products, or certain medications can interfere with breathalyzer readings and cause false positives.
Regardless of the cause, if you have not consumed any alcohol, a reading of 0.04% on a breathalyzer is unexpected and may not reflect your true blood alcohol concentration (BAC). If you are concerned about the accuracy of the reading or have doubts about your alcohol consumption, it's best to consult with a healthcare professional or a law enforcement officer for further guidance. It's important to avoid drinking and driving and to use alcohol responsibly to ensure your safety and the safety of others.