NRC felt discs for filter cartridges of breathing air filters

In the breathing air filters of the breathing air compressors, the granulates activated carbon and molecular sieve are separated by felt/filter discs. This additionally ensures that the flowing, filtering breathing air is better distributed and prevents channel formation/tunnel formation in the filter granulate. These felt filter discs also absorb the dust of the filter granules. The felt discs of the breathing air filters can also be used several times. However, they should be replaced immediately if they are moist or soaked with oil. Even if you are discolored by dust and can no longer fulfil your filter function.