HDM Heat/Moisture Exchanger (HME) | cpapdirect.com

HDM Heat/Moisture Exchanger (HME)

5.95 5.95 0 5.50 5.95 With options $5.95 5.95 With options
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Heat/Moisture Exchanger (HME)

The Z1™ Heat Moisture Exchange (HME) is an inline humidification solution unit for use with the Z1 & Z2. It is a waterless humidification that requires no additional power and takes up very little space. A great alternative to large humidifiers.

Simply attach the HME between your mask and your standard CPAP or BiPAP tubing. After that, turn on your machine and experience a steady flow of humidified sleep therapy air. HME Filters should be changed about once a week for best results.

When using your CPAP or BiPAP the HME Filter captures heat and moisture from the air as you exhale. It then returns heat and moisture to the breathing circuit with each inhalation creating a comfortable, effective and convenient humidified breathing system.


To install a Heat Moisture Exchanger for therapeutic use, connect the large diameter end of the HME to your mask and the smaller diameter end to your CPAP tube. Be sure both connections are full seated and secure. Your HME is now ready for use.

Replacing HME’s

Heat Moisture Exchangers should be changed as needed when humidification levels appear to drop – usually about once a week with proper storage and nightly use. When not in use HMEs should be stored a sealed plastic bag (i.e. a ZipLock). The HME will immediately begin to collect moisture and humidity when exposed to air. (Note: In-Line HME packaging originally recommended replacement of the HME on a daily basis; however weekly changes have been found to be more effective and the packaging is being updated to reflect this.)

Insurance Code(s) E1399
MSRP $5.95 

2 Reviews

Customer Reviews


HMM needs work

The purpose of the HME, to provide humidity, is just OK. It is better than nothing at all. I have found that if I use a nasal saline solution just before putting on the headgear it is a little better. The real downfall for me is that this is a sealed unit. To replace, you are not just replacing the blue inner filter, the entire plastic encased filter is thrown away. Even just replacing once a week at $6 plus shipping can become pricey! Come on! I find it hard to believe that they can't make the filter accessible so you can re-use the case and only discard the filter. It would be less expensive and more environmentally friendly. Having said all this, for only $6 it is worth a try to see if it helps you. Over all, I still like the Z1 cpap for traveling. I can live without the humidity on a short term basis for the convenience of the travel size cpap.

Reviewed on 07/01/2017
101 out of 145 customers found this review helpful.
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Worth the money

I recently purchased the travel size automatic cpap machine. The HDM worked well while I was on my cruise. I use this as my second machine when not at home

Reviewed on 06/09/2017
46 out of 64 customers found this review helpful.
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