Chapter 7: Cleaning/replacing components 79
Cleaning the exhalation valve
For reasons of hygiene, clean the exhalation valve once a week. To do so, proceed as
follows:
1. Clean the exhalation valve with mild soapy water. Do not use any other agents!
2. Rinse the exhalation valve thoroughly with clear water.
3. Let the exhalation valve air-dry completely.
When using other exhalation valves, the manufacturer’s instructions must be observed.
Exhalation valves not designed for reuse must be disposed of properly.
Cleaning/exchanging the air filter
COM
DC
COM
DC
B
C
D
A
A Filter frame cover B Filter cassette C Fine filter (white) D Coarse filter (black)
Figure 29: Filter cassette structure
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