ResMed S9 CPAP H5i Heated Humidifier w/ Cleanable Water Chamber

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Key Features:

  • Compatible with all ResMed S9 CPAP and BiPAP/VPAP machines
  • Includes Dishwasher Safe Cleanable Water Chamber
  • 380ml Maximum Capacity
  • Preheat Feature for enhanced comfort
  • Climate Control provides optimal humidity and temperature regardless of changing environmental conditions
  • Supports S9 ClimateLineAir Heated Tubing (optional) and Standard Non-Heated Tubing
Product Details

ResMed S9 CPAP H5i Heated Humidifier with Cleanable Water Chamber

The ResMed S9 H5i Heated Humidifier reduces nasal congestion, prevents dry mouth and throat, and enhances the overall comfort of CPAP therapy to give you a better night's sleep. Compatible with all ResMed S9 CPAP, APAP,  and BiPAP/VPAP devices, this humidifier is a great addition to your S9 machine and is especially recommended for users in colder and drier climates. 

Climate Control
The S9 H5i Heated Humidifier comes equipped with ResMed's intelligent Climate Control technology which ensures optimal humidity and temperature under all operating conditions. Built-in sensors monitor the ambient temperature and humidity to automatically adjust the humidity and temperature output for comfort. When used with the optional S9 ClimateLineAir Heated Tubing, the humidifier prevents "rainout" or excess condensation within the tube. Integrated temperature sensors inside the ClimateLineAir Heated Tubing maintain a consistent air temperature along thr entire length of the tube, eliminating the risk of rainout that can cause pressure variations and negatively affect your sleep apnea therapy. 

Dishwasher Safe Water Tub
The ResMed S9 H5i Cleanable Water Tub can be easily disassembled for cleaning and is top rack dishwasher-safe. It can also be hand washed with warm water and mild soap. Allow all parts of the water chamber to air dry away from direct sunlight after cleaning. We recommended cleaning the water tub at least once a week and replacing it every 6 to 12 months for optimal performance.

Preheat Feature
The ResMed S9 H5i Humidifier comes with a new preheat feature that allows you to warm up the humidifier to your preferred temperature before starting CPAP therapy for maximum comfort.To start warming up your S9 humidifier, navigate to the humidity icon from the home screen. Push and hold the dial for 3 seconds until you see the warm up status bar appear on screen. You can stop the preheat feature at any time by pushing and holding the dial for at least 3 seconds.

How to Disassemble the Cleanable Water Tub


What are the benefits of having humidification with your CPAP machine?
Using a humidifier with your CPAP machine helps reduce common CPAP side effects such as dry nose, mouth and/or throat that can make therapy uncomfortable and hard to tolerate. A humidifier adds moisture to the air delivered by the machine and is especially recommended for users who live in colder and drier climates.

How do I confirm whether my H5i humidifier is working properly?
To confirm whether your H5i humidifier is functioning properly, complete the following steps:

  1. Disconnect the tubing and remove the water tub.
  2. Place your hand on the heater plate to assess the temperature of the H5i heater plate. DO NOT place your hand on the heater plate if the H5i has been running within the last 10 minutes—it could still be hot.
  3. Set the humidifier output to 6.
  4. Place the unit in warm-up mode and let it run for 1 minutet
  5. Place your hand above the heater plate (without touching it) to confirm an increase in the heater plate temperature. DO NOT place your hand directly on the heater plate as it will be hot. If you do not notice a temperature increase, the heater plate is not working properly. 
Technical Data
36901, 36901Pink
1.5 lbs
Weight with Humidifier
3.5 Lbs
6" x 5.7" x 3.4"
Water Chamber Capacity
380 mL
Pressure Range
4 to 20 cm H2O
2 years for the Heated Humidifier, 1 year for the Cleanable Water Chamber
Maximum Pressure
30 cm H2O
Power Consumption
Typical: 70W (80VA) Maximum: 110W (120VA)
Item Includes
  • 1x ResMed S9 H5i Heated Humidifier
  • 1x S9 Cleanable Water Chamber
Reviews (4)
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5 of 5 Stars!
Sherri S
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Subject: Great Service
I am very happy with my purchasing experience with Respshop. Theirs was the lowest price I found for the item I bought. Ordering was easy, the website is simple to navigate. I received my order before anticipated, it was packaged well and arrived in perfect condition.
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5 of 5 Stars!
Jerry T
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Originally I bought my cpap with out a humidifier and I kept getting the dry mouth. Purchasing this humidifier really help that dry mouth feeling go away.
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5 of 5 Stars!
Mark l
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Perfect! Just what I needed. Thanks this really helped my therapy.
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5 of 5 Stars!
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Subject: ResMed S9 CPAP H5i Heated Humidifier
ResMed S9 CPAP H5i Heated Humidifier w/ Cleanable Water Chamber. Easiest repair I have ever done. Plugged the new unit in and it was done. Thanks for saving my old CPAP. I was afraid I would have to buy a new one.
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Q&As (3)
Have a question on this item? Ask here and we will answer it in 12-24 hours, usually in a few business hours! Questions and answers will appear here after we answer. You may also have email notifications.
Does it work with Airsense 10. Or Airstart 10?

No, it does not. That is for the S9 by Resmed. You need the water chamber 37479 or 37299 for the Airsense 10.

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Is this the whole machine and humidifier? or just the heated water container

That is the humidifier for the Resmed S9 cpap.

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can you give more discout,$20?

At the moment our best discount on this item is $20 by using code SAVE20JU

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Showing 1 to 3 (of 3 questions)