Understanding False Positives in Cannabis Breathalyzers

While cannabis breathalyzers are a common tool for law enforcement and workplaces, false positives can occur. Here's what you need to know to avoid confusion and understand why these results might happen.

cannabis breathalyzer accuracy

• Chemical cross-reactivity can lead to false positives.
• Medications, mouthwashes, and even certain foods can trigger false positives.
• Older technology in breathalyzers can be more prone to false readings.

Causes of False Positives

• Chemical Cross-Reactivity: Many breathalyzers detect the presence of a cannabinoid called cannabidiol (CBD), which is non-psychoactive. CBD is present in hemp, which is often confused with cannabis, leading to false positives.
• Medications and Personal Care Products: Ingredients in medications, mouthwashes, and other personal care products can mimic the chemical profiles of cannabinoids, causing false positives.
• Food and Drinks: Consuming certain foods or beverages can lead to false positives, as some contain hemp or CBD oil.
• Older Breathalyzer Technology: Older models may not be as precise, leading to higher instances of false positives.

Preventing False Positives

• Stay informed about the substances that can cause false positives.
• Avoid using medications, mouthwashes, or personal care products with cannabinoid mimics.
• Consider the source of your food and drinks, especially if you're aware of any hemp or CBD content.