What is the primary purpose of the Intoxilyzer 9000?

The primary purpose of the Intoxilyzer 9000 is to determine a subject's level of alcohol intoxication. This device is specifically designed to measure the concentration of alcohol in an individual's breath, which correlates to their blood alcohol content (BAC). Law enforcement uses the Intoxilyzer 9000 to assess whether a driver is over the legal limit for alcohol consumption, helping to enforce DUI laws and enhance road safety.

Understanding that the Intoxilyzer 9000 operates on the principle of infrared spectroscopy allows one to see why its main function focuses on alcohol detection. The device estimates the amount of alcohol vapor present in the breath sample collected, thus providing law enforcement with a reliable measure of potential intoxication levels.