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For industrial zones with air polluting processes. Displacement flow diffusers with bell-shaped, low turbulence air discharge in cooling mode. For more information see: https://www.trox.de/en/industrial-diffusers/qsh-9ac93b508a3ca7df. Type QSH displacement flow diffusers are used primarily for industrial zones with air polluting work processes. Bell-shaped air discharge in cooling mode, vertical air discharge in heating mode. Low-turbulence displacement of polluted or contaminated air in the occupied zone. For variable and constant volume flows. For supply air to room air temperature differences from –8 to +12 K. Installation at heights between 3.5 m and 10 m, either free hanging or on walls or pillars. Installation preferably outside of occupied zones, e.g. in corridors. Ideal for use with TDC temperature difference control module. This EPD includes the environmental data of the product series QSH. The following represents a representative dataset of the most sold variant in the declared sales year (QSH-B-250-W00).