Cannabis Breathalyzer Accuracy: How Reliable Are They?
Understanding Accuracy
Cannabis breathalyzers measure THC levels in exhaled breath, but accuracy can be affected by factors like recent cannabis use and individual metabolism.
Key Factors
- Time since last use: THC levels decline over time, impacting accuracy.
- Metabolism: Variations in metabolism can lead to different readings for the same amount of THC.
- Device quality: Lower-quality devices may provide less reliable results.
Accuracy Range
Accuracy can vary significantly, with some devices providing reliable results down to 0.01 ng/mL, while others may struggle below 0.1 ng/mL.
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Use Cases
While breathalyzers are popular for personal use, they are also used in workplace and legal settings. However, their accuracy is a concern in these contexts.