HLU plastic air handling unit sections with open doors and damper actuator

Photo: Mariusz Młynarczyk / CloudAir.tech

Grey plastic air handling unit modules by HLU are shown with inspection doors open, an "ErP 2018" label, a pressure gauge and a filter section. The inlet section has a shut-off damper with an orange actuator marked "close" and "open", set against an industrial night-scene backdrop.