ResMed HumidAir Standard Replacement Water Tub for AirSense 10 & AirCurve 10 (REF 37299)

ResMed HumidAir Standard Replacement Water Tub, REF 37299

Replace the water chamber in a compatible AirSense 10 or AirCurve 10 humidifier with the ResMed HumidAir Standard tub. This listing is for one new, sealed REF 37299 chamber. It is the hand-wash-only standard version; the CPAP machine is not included.

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Why Replace Your Water Tub?

ResMed recommends replacing your humidifier water chamber every 6 months (or sooner if cracked, discolored, or difficult to clean). Inspect the chamber regularly and follow your equipment provider’s replacement schedule.

Key Benefits

• Exact OEM Fit: Factory replacement part (REF 37299) engineered specifically for AirSense 10 and AirCurve 10 series; no adapters or modifications needed.
• Clear MAX / MIN Fill Lines: Observe the marked maximum fill level; do not overfill.
• Easy to Clean: Openable for filling and hand cleaning. This standard tub must not be washed in a dishwasher or washing machine.
• Authentic ResMed Product: Genuine OEM part, not a third-party clone; check the part number against your device before ordering.
• New & Sealed: Arrives in original ResMed packaging, visually inspected before shipment from Burlington, Kentucky.

What's Included

• 1 × ResMed HumidAir Standard Water Tub (REF 37299)
• Original ResMed retail packaging
• CPAP machine not included

Compatible Machines

• ResMed AirSense 10 (all models: AutoSet, Elite, CPAP)
• ResMed AirCurve 10 (all models: VAuto, S, ASV, ST)
• Not compatible with AirSense 11 or older S9 series

How to Replace

1. Power off and unplug your CPAP machine.
2. Slide the old water tub out from the side of the humidifier.
3. Rinse the new tub with warm water before first use.
4. Fill with distilled water to the MAX line.
5. Slide the new tub back in until it clicks into place.
6. Power on and resume therapy as normal.

Care & Maintenance Tips

• Clean weekly by hand with warm water and mild detergent. Rinse thoroughly and let it dry away from direct sunlight and heat.
• For white powder deposits, ResMed specifies a solution of 1 part household vinegar to 10 parts water. Follow the device user guide.
• Use only distilled water to prevent mineral buildup.
• Replace every 6 months or per your equipment provider's guidance.

Frequently Asked Questions

Is this the standard or cleanable tub version?
This is the Standard HumidAir water tub (REF 37299). ResMed also makes a Cleanable version — confirm your machine's humidifier requirement before ordering.

Will this fit my AirSense 11?
No. The AirSense 11 uses a different tub design. This tub is compatible with AirSense 10 and AirCurve 10 only.

Can I use tap water?
ResMed recommends distilled water only. Tap water causes mineral deposits that shorten the tub's lifespan and can affect machine performance.

How often should I replace the water tub?
ResMed recommends every 6 months, or sooner if you notice discoloration, cloudiness, cracks, or persistent odor.

Prescription and safety information

The actual package is marked Rx Only. Use this prescription-labeled accessory only as directed by your qualified healthcare professional with compatible equipment.

This is a replacement accessory for use with compatible ResMed CPAP/BiPAP equipment. Always follow your prescribing clinician's guidance for CPAP therapy settings and maintenance schedules.

More4less Outlet is an independent reseller and is not affiliated with, authorized by, or endorsed by ResMed Corp. All trademarks belong to their respective owners.