Facility for treating or processing or transporting products

A facility for treating or processing or transporting products comprising materials of wood composite, paperboard or plastic, the facility comprising:

• at least a machine;
• and
• multiple sensors assigned to the machine oriented essentially in a vertical direction V and which each comprises a detection surface on that contamination settles on the detection surface during the treatment or processing process,
• each sensor being assigned its own blow-off device operating with compressed air and being a separate unit that is located in an immediate vicinity of the sensor, each blow-off device includes:
• a compressed air generator,
• an overpressure container,
• a blow-off nozzle position above the detection surface, and
• a switching valve, and
• the compressed air generator being connected to the overpressure container via a first line and the overpressure container being connected to the blow-off nozzle via a second line.