Instruction Manual
Negative Pressure Unit green dec
Version 1
Page 35
7.2.10.
Warnings and indications
The filter occupancy is displayed in 5 steps.
A necessary filter change is indicated by the message "filter change" and an acoustic signal
sounds. After the change, the warning must be acknowledged by tapping the "OK" button.
The Negative Pressure Unit detects whether a HEPA filter is installed. If this is not the
case, a warning message "HEPA filter?" appears and an acoustic signal sounds. After
installing a filter, the warning must be acknowledged by tapping the "OK" button.
Filter occupancy