Abstract
Inconsistent exhaled volume requirements across breath alcohol analyzers create a significant hurdle when comparing breath alcohol concentration (BrAC) from various analyzers. Vast differences in exhaled volume requirements among analyzers mean reliable BrAC comparisons cannot be made from one analyzer to another. Forensic scientists and manufacturers of breath alcohol analyzers must consider the ramifications of inconsistent exhaled volume requirements in the legal context for fair and reliable comparisons of BrAC to be made.