ResMed HumidAir 11 Standard CPAP Water Tub - Ref. 39100 - Next Day Delivery
ResMed HumidAir 11 – Standard Water Tub for AirSense 11 CPAP
The ResMed HumidAir 11 Standard Water Tub is a genuine replacement humidifier chamber engineered for the AirSense 11 CPAP series. Designed with durable, medical-grade plastic and a precision silicone seal, the ResMed HumidAir 11 tub ensures consistent humidification, helping maintain comfort and performance throughout nightly therapy.
Its simple, hand-washable design makes maintenance quick and effective. Easy to remove, refill, and reinstall, this replacement water tub supports long-term device reliability while maintaining consistent moisture output for optimal therapy results.

Key Features of the ResMed HumidAir 11
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Authentic Replacement: Designed specifically for the ResMed AirSense 11 CPAP system.
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Durable Construction: Made from medical-grade plastic with a tight silicone seal to prevent leaks.
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Consistent Humidification: Maintains stable moisture levels for greater comfort.
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Easy Maintenance: Simple to remove, refill, and clean by hand (not dishwasher safe).
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Long-Lasting Performance: Replace every 6–12 months for optimal results.
Specifications
| Specification | Details |
|---|---|
| Brand | ResMed |
| Model/SKU | 39100 |
| Compatibility | AirSense 11 CPAP devices |
| Type | HumidAir 11 Standard Water Tub |
| Material | Medical-grade plastic with silicone seal |
| Cleaning | Hand-wash only; air dry |
| Certification | CE marked, EU MDR compliant |
| Replacement Interval | 6–12 months |
Why Choose the ResMed HumidAir 11
Built for reliability and ease of use, the ResMed HumidAir 11 Standard Water Tub provides consistent humidification, simple cleaning, and a perfect fit for your AirSense 11 CPAP. With its sturdy construction and long service life, it’s the trusted choice for maintaining comfort and protecting your device’s performance.
Change of Mind
A 30-day change-of-mind return policy is available for brand new items that are unopened and unused only. Please consider carefully before opening a device, as once an item has been opened or used, even briefly, it can no longer be resold as new.
We recommend returning a brand new item only if it is damaged or faulty. If you wish to return an opened item, please contact us in advance to discuss any applicable restocking fees, as the item may need to be resold as used.
For hygiene reasons, opened CPAP masks and accessories are non-returnable.
Return shipping costs are the responsibility of the customer.
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