Both breath analysis and blood testing are valid methods for measuring alcohol intoxication. Blood tests are considered the absolute gold standard for accuracy, but they require trained medical personnel, sterile equipment, and laboratory processing time.
Modern fuel cell breath analyzers, however, have closed much of the accuracy gap. High-quality devices like AlcoBreath's PRO-800 achieve accuracy levels within ±0.005% BAC — well within acceptable margins for legal proceedings in most jurisdictions.
For roadside testing, speed and portability make breath analyzers the practical choice for law enforcement worldwide.
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