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Aespire 7900
How to prevent water build-up
Why is water buildup a
problem?
How much water is
acceptable?
Where does the water
come from?
Solutions:
3-12
Pooled water in the flow sensor or water in the sensing lines causes false
alarms.
Small beads of water or a foggy appearance in the flow sensors is OK.
Water comes from exhaled gas and a chemical reaction between CO
absorbent in the absorber.
At lower fresh gas flows more water builds up because less gas is scavenged
and:
• More CO
stays in the absorber to react and produce water,
2
• More moist, exhaled gas stays in the absorber.
• Empty the water reservoir in the canister when changing the soda lime.
• Ensure that water condensing in the breathing circuit tubes is kept lower
than the flow sensors and is not allowed to drain into the flow sensors.
• Water condensation in the breathing circuit tubing can be eased using a
Heat & Moisture Exchange (HME) filter at the airway connection.
and the
2
1009-0633-000
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