What aspect of alcohol testing does the Intoxilyzer 9000 primarily focus on?

The Intoxilyzer 9000 primarily focuses on measuring blood alcohol concentration (BAC). This device uses an infrared spectrometry process to analyze the breath of an individual to determine how much alcohol is present in their system. The BAC is a critical metric used in law enforcement to assess whether an individual is over the legal limit for driving, which is typically set at 0.08% in many jurisdictions.

While understanding absorption rates, metabolism, and behavioral effects of alcohol are important in the broader context of alcohol consumption and effects, the core function of the Intoxilyzer 9000 is to quantify the BAC. This quantification allows for objective legal and safety evaluations, making it essential in contexts such as DUI investigations.