11 Cooling devices, namely, air cooling apparatus; refrigerators; cooling machines, namely, air cooling apparatus; refrigerators and cooling devices being air cooling apparatus; commercial refrigeration equipment, namely, air cooling equipment in the nature of an air cooling apparatus; heat sinks for ventilation apparatus; cooling installations for gas; air cooling apparatus; cooling apparatus and installations, namely, air cooling apparatus; gas-powered cooling devices, namely, gas-powered air cooling apparatus; installations for cooling the air, namely, air cooling apparatus; air heater, namely, hot-air space heating apparatus; air heating systems, namely, hot-air space heating apparatus; personal heating and drying devices, namely, hot air blowers for drying purposes for vehicle refinishing; space heating apparatus; heating systems, namely, hot air space heating apparatus for industrial purposes; electric space heaters; gas heating installations; heating apparatus and installations, namely, hot-air space heating apparatus; heating apparatus for industrial purposes, namely, hot-air space heating apparatus; devices for tempering breathing air, namely, hot air space heating apparatus; air cooling devices in the nature of air cooling apparatus; air cooling apparatus specific for respiratory protection systems without a compressed air tank, as well as for use in connection with respiratory protection devices; air cooling apparatus, specifically for use in the field of respiratory protection; cooling devices in the nature of an air cooling apparatus to assist a user in breathing temperature controlled breathing air; cooling devices, namely, air cooling apparatus for use with pressurized breathing apparatus; cooling devices, namely, air cooling apparatus for use with pressurized breathing apparatus without a compressed air tank; cooling devices, namely, air cooling apparatus for use with personal protective equipment; compressed air cooling apparatus; cooling devices, namely, air cooling apparatus for breathing temperature-cooled air in the field of painting technology; cooling devices, namely, air cooling apparatus for breathing temperature-cooled air, for connection to breathing masks and breathing hoods; air temperature control device in the nature of an air cooling apparatus for use as part of a respiratory protection system; air heaters, namely, hot-air space heating apparatus; air heating devices, namely, hot-air space heating apparatus for respiratory protection systems without a compressed air tank; air heating devices, namely, hot-air space heating apparatus for use in the field of respiratory protection; breathing air warmers, namely, hot-air space heating apparatus that allows a user to breathe temperature controlled air; warming devices, namely, air heating pressure-supplied breathing apparatus that allows a user to breathe temperature controlled air; warming devices, namely, air heating pressurized breathing apparatus without a compressed air tank that allows a user to breathe temperature controlled air; warming devices, namely, air heating apparatus for use with personal protective equipment; compressed air heaters, namely, hot-air space heating apparatus; heating devices for breathing air, namely, air heating apparatus that allows a user to breathe temperature controlled air for use in the field of painting technology; warming devices for breathing air, namely, air heating apparatus that allows a user to breathe temperature controlled air for connection to breathing masks or breathing hoods