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Category: CPAP Humidifiers > Heated Humidifiers > Machine Specific
Humidaire H4i Heated Humidifier
MSRP: $150.00  Click here to see the price
This product ships for FREE! Shipping Policy
Rated 4.5 out of 5 by 47 cpap.com customers. Read reviews.
Part Number 26940: In Stock and Available to Ship Today.
Prescription Required
We can request your prescription for you.
Key Product Information

    Manufacturer: Resmed

    ResMed's HumidAire 4i is engineered to deliver 30% more heated humidification than the H3i. The humidifier is an integrated unit for use with ResMed S8 and S8 II series CPAP machines. The H4i Water Chamber has also increased in capacity up to 390 ml of water.

    The HumidAire 4i provides relief from symptoms such as dry nose or mouth, irritation, and congestion sometimes related to CPAP therapy without jeopardizing performance or convenience.

    Nasal CPAP users generally experience congestion and dryness of the nose and throat. The warm moist air that humidification provides has been proven to relieve symptoms of dryness and can make therapy more comfortable.

    Fliptop lid design – water chamber fills without removing the tubing.

    Small design - unobtrusive on the nightstand and easy to pack for travel.

    Seamless integrated unit - snaps onto the CPAP machine whenever needed.

    390 ml capacity – very efficient humidification with a high volume.

    Powered by ResMed S8 and S8 II Machines - no extra outlets or power supply necessary.

    Simple Dial Control - easy to utilize in darkness and fast to respond.



    Returns Offered on Warranty Issues Only

resmed h4i humidaire heated humidifier profile
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CPAP.com Comments
This humidifier cannot be run off of 12 volt DC power. If a machine is powered by 12 volts, the heated humidifier will not run. A 110 volt pure sine inverter hooked to a 12 volt battery can be used to power an S8 CPAP and this humidifier.

This humidifier integrates with the full line of ResMed S8 and S8II Series CPAP/APAP/VPAP Machines. The H4i Heated Humidifier is not compatible with:

  • AutoSet CS 2
  • S7 AutoSet Spirit
  • S7 Series
  • VPAP III Series
  • VPAP Malibu

VPAP III Series is not an S8 model and will only work with the HumidAire 2i Heated Humidifier.

The S8 AutoSet II and Elite II are compatible with this product, but the CPAP machines were manufactured BEFORE the H4i was manufactured. When setting either machine, please note that H3i will appear on the display.



A prescription is required to buy this product. You may fax it to us at 1.866.353.2727 or 1.713.541.7370. If you are purchasing a CPAP, BiPAP or APAP machine, please make sure the pressure setting is indicated.
Related Parts and Accessories
H3i Water Chamber Upgrade Kit
Standard Water Chamber
Dishwasher Safe Water Chamber
User Reviews

Great humidifier   February 06, 2010

(5 out of 5) by Greg A, Champaign, IL

"The H4i humidifier is great. Very well built, easy to clean. Great addition to the S8 CPAP and easy to travel with. One of my favorite things is that it is very durable. You don't feel like you're going to break it when you handle it. Highly recommended!"


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nice, compact   February 06, 2010

(5 out of 5) by BETH

"this humidifier appears very small, but hold a very adequate amount of water. Only one problem, is that on my rental Resmed humidifer/machine, the water line "fill to here" was imprinted in blue against the plastic - this one is clear, and I have a difficult time seeing where to stop, or even seeing where the water line is......thought I'd color it in myself with a permanent marker, lol."


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February 05, 2010

(5 out of 5) by James H, Lufkin, TX

"WORKS GREAT - DOESN'T DRY MOUTH OUT AT ALL."


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Big Improvement in convenience but.....   February 03, 2010

(4 out of 5) by MB, San Diego, CA

"This humidifier works very well indeed. It is excellently integrated with the S8 line of CPAPs/APAPs; no need for two power cords or a connecting hose. I am using it with the S8 APAP. I like the "warming up" feature very much. Also, it is very convenient to not have to disconnect hoses after each session. Now the downsides. First, somehow the water tank seems to always be empty by the time I wake up in the morning. I had previously used the DeVilbiss humidifier, which is much less convenient to use, but had significantly more water capacity. Second, the standard water tank is impossible to clean. There is an optional easy to clean tank, which I guess I may eventually purchase."


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February 03, 2010

(5 out of 5) by Sandra C, Englewood, CO

"This humidifier warms the water quicker that my old machine."


1 of 1 found the review helpful.
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Product Specifications
Performance
  • Maximum Heater Plate Temperature 185 deg F (85 deg C)
  • Temperature Cut-Out 199 def F (93 def C)
Dimensions (H x W x D)

Chamber and Docking Station 5" x 6.7" x 8.3"
(118 mm x 164 mm x 145 mm)

Weight

Docking Station and Unfilled Water Chamber 732 g (1.6 lb). Water capacity to maximum fill line: 390 mL

Power Supply Input Range

100-240V, 50/60Hz; 110V, 400Hz; 2.5A < 140 VA (110 W) (maximum power consumption).

Maximum heater element power: 85 W.

Housing Construction

Docking Station Flame retardant engineering thermoplastic, plated cast aluminum. Water chamber: Injection molded plastic, stainless steel.

Environmental Conditions

  • Operating Temperature +41 deg F to +95 deg F
  • Operating Humidity 10-95% non-condensing
  • Storage and Transport Temperature -4 deg F to +140 deg F
  • Storage and Transport Humidity 10-95% non-condensing
IEC 60601-1 Classification

Class II (double insulation)
Type CF

Electromagnetic Compatibility

Product complies with all applicable electromagnetic compatibility requirements (EMC) according to IEC60601-1-2, for residential commercial and light industry environments.

*Consult the medical department of the carrier before using on aircraft.
Product Images
resmed h4i humidaire heated humidifier side resmed h4i humidaire heated humidifier back  
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