air handling components and air handling units, namely ventilating louvers, ventilating fans for commercial or industrial use; central air conditioning systems, namely air conditioners and wall outlets and/or ceiling nozzle air outlets, and/or floor air outlets all sold as a unit; ceiling systems for air supply for operating theaters comprising room air supply units, lighting and cooling channels, air extraction units and air cooling units for the lighting and cooling channels, made of stainless steel and/or plastic
Environmental Control Apparatus