The THC Breath Analyzer (THCBA),is a point of care breath testing tool for the rapid detection of recent cannabis use (within 1-3 hours). The underlying technology for the THCBA uses microfluidic sensors coupled with machine learning algorithms which operates under principles similar to mammalian olfaction systems. Please also see why breath correlates better with the peak THC impairment window.
Microfluidic-based artificial olfaction technology pairs gas sensors, such as metal oxide semiconductor, with microfluidic channels for detection of THC in breath samples. The THCBA collects a single breath from the user and the sensor response is represented by a characteristic pattern or “smell-print” to the specific target gas. This pattern, along with knowledge of the target analyte is used to train a machine learning model. The THCBA has been built to provide easy to understand screen prompts for the positive and negative detection of THC in breath in a portable manner, and can be administered without extensive training. The THCBA is at the advanced prototype stage.