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Cleaning and maintenance
You should regularly carry out cleaning and maintenance as described in this section.
Daily
1. Remove the air tubing by pulling on the finger grips on the cuff. Hang it in a clean, dry place until next
use.
2. Slide the H5i latch.
3. Lift open the flip lid and remove the water tub.
4. Wash the H5i water tub in warm water using a mild detergent.
5. Rinse thoroughly in clean water and allow it to dry away from direct sunlight.
6. Before next use, fill the water tub, return it to the H5i and close the flip lid.
Note: Do not open the H5i water tub. There are no user serviceable parts inside.
1
2
3
4
5
6
Weekly
1. Remove the air tubing from the S9 device and the mask.
2. Wash the air tubing in warm water using mild detergent.
3. Rinse thoroughly, hang, and allow to dry.
4. Before next use, reconnect the air tubing to the air outlet and mask.
Monthly
1. Wipe the exterior of the S9 and H5i with a damp cloth and mild detergent.
2. Check the air filter for holes and blockage by dirt or dust.
3. Peel the flip lid seal from the flip lid and wash it in warm water using a mild detergent.
Maintenance checklist
ü Inspect the H5i water tub and flip lid seal for wear and deterioration.
ü Replace the water tub if any component is leaking or has become cracked, cloudy or pitted.
ü Replace the flip lid seal if cracked or torn.
ü Clean white powder deposits in the water tub by using a solution of one part household vinegar to
10parts water.
Replacing the air filter
Replace the air filter every six months (or more often if necessary).
1. Remove the air filter cover from the back of the S9 device.
2. Remove and discard the old filter.
3. Insert a new ResMed air filter ensuring that it is sitting flat in the air filter cover.
4. Replace the air filter cover.
Air filter
Air filter cover
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