Abstract: A gas mixer (100), to which a first gas and a second gas are fed, mixes the two fed gases to form a gas mixture. A helical component (2) is arranged in an interior of an outer component (5). A helical mixing cavity (20) is formed between the outer component and the helical component (2). An additional mixing volume (6) is located in the interior of the outer component (5) or in the interior of the helical component (2). One gas is sent through a first feed line (31) to the helical mixing cavity (20), and the other gas is sent through a second feed line (32) to the additional mixing cavity (6). A gas mixture discharge line (40) discharges the produced gas mixture from the helical mixing cavity (20).

Abstract: A breath alcohol measurement device has a sample collector (1) with a sample inlet (2) configured for a contactless introduction of a breath sample. A measurement unit (9) has a sensor (16) that generates a measurement signal based on an alcohol content in the breath sample. A control and evaluation unit (4) determines the alcohol content based on the measurement signal and transmits a result-specific signal to an output unit (5). Some of the breath sample provided into the sample inlet (2) is applied, at least intermittently via a main flow duct (10), to the sensor (16) via a measurement gas duct (21) that is connected via an outlet to the environment (7). Between the sample inlet (2) and the outlet of the main flow duct there is a further outflow opening (6) through which some of the breath sample introduced into the sample inlet exits into the environment.

Abstract: A breath alcohol measurement device has a sample collector (1) with a sample inlet (2) configured for a contactless introduction of a breath sample. A measurement unit (9) has a sensor (16) that generates a measurement signal based on an alcohol content in the breath sample. A control and evaluation unit (4) determines the alcohol content based on the measurement signal and transmits a result-specific signal to an output unit (5). Some of the breath sample provided into the sample inlet (2) is applied, at least intermittently via a main flow duct (10), to the sensor (16) via a measurement gas duct (21) that is connected via an outlet to the environment (7). Between the sample inlet (2) and the outlet of the main flow duct there is a further outflow opening (6) through which some of the breath sample introduced into the sample inlet exits into the environment.

Abstract: A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (2

Abstract: A cooling device (10), for a protective respiratory apparatus (100), has a housing (20), a breathing bag (30) arranged in the housing (20) with an inlet (32) for respiratory air (A) and an outlet (34) for cooled respiratory air (A) and a spring plate (40) with a spring device (42) to apply a spring force to the breathing bag (30). Between the housing (20) and at least one section of an outer side (36) of the breathing bag (30) an cooling air channel (50) is formed. The cooling air channel (50) is connected to the ambient air (U) outside the housing (20) in a fluid-communicating manner. A blower (52) is arranged for the generation of a flow of the ambient air (U) through the cooling air channel (50). Furthermore a protective respiratory apparatus (100) having such a cooling device is provided.

Abstract: A static spray mixer for mixing and spraying two flowable components includes a tubular mixer housing extending in the direction of a longitudinal axis up to a distal end with an outlet opening, having one mixing element arranged in the mixer housing for mixing the components and having an atomization sleeve with an inner surface surrounding the mixer housing in an end region. The atomization sleeve has an inlet channel for a pressurized atomization medium. A plurality of grooves is in the outer surface of the mixer housing or in the inner surface of the atomization sleeve and extend toward the distal end and form separate flow channels between the atomization sleeve and the mixer housing through which the atomization medium flows from the inlet channel of the atomization sleeve to the distal end of the mixer housing. The inlet channel is arranged asymmetrically with respect to the longitudinal axis.

Abstract: A static spray mixer for mixing and spraying two flowable components includes a tubular mixer housing extending in the direction of a longitudinal axis up to a distal end with an outlet opening, having one mixing element arranged in the mixer housing for mixing the components and having an atomization sleeve with an inner surface surrounding the mixer housing in an end region. The atomization sleeve has an inlet channel for a pressurized atomization medium. A plurality of grooves is in the outer surface of the mixer housing or in the inner surface of the atomization sleeve and extend toward the distal end and form separate flow channels between the atomization sleeve and the mixer housing through which the atomization medium flows from the inlet channel of the atomization sleeve to the distal end of the mixer housing. The inlet channel is arranged asymmetrically with respect to the longitudinal axis.

Abstract: A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (2

Abstract: A cooling device (10), for a protective respiratory apparatus (100), has a housing (20), a breathing bag (30) arranged in the housing (20) with an inlet (32) for respiratory air (A) and an outlet (34) for cooled respiratory air (A) and a spring plate (40) with a spring device (42) to apply a spring force to the breathing bag (30). Between the housing (20) and at least one section of an outer side (36) of the breathing bag (30) an cooling air channel (50) is formed. The cooling air channel (50) is connected to the ambient air (U) outside the housing (20) in a fluid-communicating manner. A blower (52) is arranged for the generation of a flow of the ambient air (U) through the cooling air channel (50). Furthermore a protective respiratory apparatus (100) having such a cooling device is provided.

Abstract: A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (2

Abstract: A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (2