It is important to protect ventilation systems and air filters from moisture. Remember to:
- Place the air intake in favorable weather direction.
- Use effective weather protection with drainage to prevent rain and snow from penetrating into the channels.
- Use pre-filter and compact filter class F7-F9.
- Use any preheating the air.
The relative humidity (RH) should never exceed 90% and the average of three days should be less than 80%.
A good three-step solution is weather protection, pre-filter and compact filter F7-F9.