BREATHALYZER WITH AN IMPROVED MOUTHPIECE

摘要

The present invention describes a breathalyzer (7) that is unproved with respect to handling, especially of the replaceable mouthpiece (1), direct physical contact between the test subject and the breathalyzer being precluded for all practical purposes. The breathalyzer (7) is characterized in that the mouthpiece (1) is of a trapezoidal cross- section that is complementary to a corresponding negative shape within the holder (6) of the breathalyzer (7) so as to ensure a flush fit for the mouthpiece (1).