40 Functional checks
N.B. Ensure that the test bag is not damaged and test its
function regularly, e.g. in the context of device servicing.
7.1 Obligatory checks
Before each use:
• Carry out a functional check.
After each use or dismantling:
• Clean, disinfect or sterilize the ventilator and its
components (note “6. Hygienic preparation“ on
page 33);
• Check the lip membrane in the patient valve
(note “7.3 Checking patient hose system“ on
page 42). It should not be crinkled, sticky or
misshapen.
• Carry out a functional check.
At least every 6 months, if the ventilator
has not been used in the intervening
period:
• Carry out a functional check.
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