Dräger Safety Ag&co. Kgaa

Carsten Stemich

Jochim Koch

Stefan Morley

Jens Rekow

Stefan Barten

Michael Richenberger

Sebastian Schröter

Bastian Wilke

Christian Ulbrich

Sebastian Schroter

A breath alcohol measurement device has a sample collector () with a sample inlet () configured for a contactless introduction of a breath sample. A measurement unit () has a sensor () that generates a measurement signal based on an alcohol content in the breath sample. A control and evaluation unit () determines the alcohol content based on the measurement signal and transmits a result-specific signal to an output unit (). Some of the breath sample provided into the sample inlet () is applied, at least intermittently via a main flow duct (), to the sensor () via a measurement gas duct () that is connected via an outlet to the environment (). Between the sample inlet () and the outlet of the main flow duct there is a further outflow opening () through which some of the breath sample introduced into the sample inlet exits into the environment.

Breath alcohol measurement with contactless sample collection

A cooling device (), for a protective respiratory apparatus (), has a housing (), a breathing bag () arranged in the housing () with an inlet () for respiratory air (A) and an outlet () for cooled respiratory air (A) and a spring plate () with a spring device () to apply a spring force to the breathing bag (). Between the housing () and at least one section of an outer side () of the breathing bag () an cooling air channel () is formed. The cooling air channel () is connected to the ambient air (U) outside the housing () in a fluid-communicating manner. A blower () is arranged for the generation of a flow of the ambient air (U) through the cooling air channel (). Furthermore a protective respiratory apparatus () having such a cooling device is provided.

Cooling device for a protective respiratory apparatus

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Ratzeburg, Germany

Carsten Stemich