The CF Condensor fans have a tough epoxy paint finish for adequate protection against corrosion while the rigid wire formed welded frame is electroplated prior to epoxy paint.
All models also include a steel finger proof guard ISO13582.
The fans are highly sufficient for moving high volumes of air at relatively low pressures.

Motors:
The motors are protected to Ip54 with Class F insulation, being highly resistant to dust and water ingress and features sealed for life bearings.