HDM Z1 Auto Travel APAP Machine with Z-Breathe™ | sleepdirect.com

HDM Z1 Auto Travel APAP Machine with Z-Breathe™

$549.00 549.00
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This product has been discontinued, but a newer version is available.

HDM Z2 Auto Travel APAP Machine with Z-Breathe

$599.00 msrp $699.00

Z1 Travel CPAP Machine with Z-Breathe™ (15-Day Trial)


Lightweight and compact, the Z1 Auto from HDM delivers effective sleep apnea therapy for patients on the go. The Z1 Auto machine builds off the success of the standard HDM Z1 CPAP with the enhanced feature of auto-adjusting pressure regulation to meet real-time patient needs. Teamed with the fully-integrated PowerShell battery back, the Z1 Auto CPAP can deliver a full night of cord-free therapy on a single battery charge. This is AutoPAP (also known as APAP) therapy made mobile – the perfect solution for campers and outdoor enthusiasts with sleep apnea.

  • Automatic Pressure Adjustments

The Z1 Auto adapts to your breathing patterns and adjusts pressure based on immediate requirements. This constant feedback and adjustment allows the Z1 Auto to deliver the minimal effective pressure required to maintain the airway, rather than a fixed higher pressure setting like a standard CPAP machine. The result is a less intrusive, more natural breathing experience for the patient.

  • Compact, Lightweight and Quiet

Weighing in at 10.4 ounces, the Z1 Auto is one of the lightest Auto CPAP machines on the market. The Z1 Auto is also one of the quietest machines available, registering 26 dBA in operation. And it’s one of the smallest, with dimensions about the size of a soda can. While durable enough to serve as an everyday plug-in APAP machine, the Z1 Auto’s compact, handheld size is ideal for travel. A convenient and discreet stowaway in an overnight bag or carry-on, the Z1 Auto is FAA-approved for inflight use.

  • Integrated PowerShell Battery

The Z1 Auto integrates seamlessly with the optional PowerShell™ battery system for cordless AutoPAP performance. A fully-charged battery promises 8 hours of off-the-grid performance from the Z1 Auto. And the Z1 lithium-ion battery modules can be easily swapped out, so purchasing extra batteries means more nights away from home for all you outdoor enthusiasts.

  • Nitelog Mobile App

The Nitelog™ mobile app for IOS allows you to sync and download data from your Z1 Auto via Bluetooth. You can share data with your doctor from the app. The Nitelog app also lets you use your phone as a remote for the Z1 Auto.

The Z1 Auto is designed and assembled in the USA, and is backed by a 3–year warranty. It comes equipped with a disposable filter, as well as an HME (Humidification Moisture Exchanger), with the latter connecting between the CPAP mask and tube and serving as a waterless humidification system (an HME lasts for 5–7 days before it needs replacement). The Z1 Auto also includes a USB cable, travel pouch, AC power supply and 4’ Slim-Style tubing.


  • Extremely lightweight at 10.4 ounces (295 grams)
  • Compact design fits in one hand
  • Advanced Auto algorithm learns and responds to your breathing
  • Z-Breathe™ delivers more natural breathing experience
  • Leak compensation automatically compensates for minor air leakage
  • FAA-approved for in-flight use
  • Nitelog™ Mobile App with seamless syncing through built-in Bluetooth™
  • Optional PowerShell™ battery can power 8 hours cord-free therapy
  • Approved by the FAA for in-flight use

In The Box

  • Z1 Auto CPAP Machine
  • 4 Foot Slim-Style tube
  • CPAP filter
  • Hose tube adapter
  • Drawstring carry pouch
  • AC power supply (auto-switching for international travel)
  • USB cable
  • 1 Heat Moisture Exchanger (HME)
  • User instructions
  • 3-year warranty

Don’t leave your sleep apnea therapy behind while traveling. The convenient Z1 Auto makes life on the road a more restful affair. Shop for the HDM Z1 Auto CPAP machine today at Sleep Direct.

Rx Required

Part#: HD60-1007

Product Downloads

Weight 7.9 oz
Dimensions 6.3″L x 3.5″W x 2″H
AC (Wall) Power AC power 100-240V, 50-60Hz (Auto Sensing)
AC Power Cord Length 10 Feet 4 Inches
Altitude Adjustment Automatic Up To 8000 Feet
Warranty 3 years
Therapy Modes APAP, CPAP, Ramp
Sound Pressure Level 26 dBA or less
Operating Temperature 5 - 35 degrees Celsius (41 to 95 degrees F)
Pressure 4-20 cmH2o
Insurance Code(s) E0601
MSRP $549.00 

18 Reviews

Customer Reviews


HDM Z1 Travel APAP

So far, so good. I was able to use my travel apap last week while travelling to SFO. It is really easy to use and I really enjoy the app (nitelog) with it. I still need to figure out how to make minor adjustments so I'll be perusing the website for more info.

Reviewed on 03/03/2019
4 out of 5 customers found this review helpful.
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Travel Happy with my new HDM Z1

Very Happy with my new travel CPAP system. I tried it out before travel and found it to be very good. I was worried about some noise issues that were in some of the reviews but I found this machine to be quieter than my home system. I can tell you the people around me on the plane will appreciate this machine because I snore very loud. My plan is now to Travel and feel rested because I can now travel with my CPAP. Yippee!!

Reviewed on 01/12/2019
4 out of 5 customers found this review helpful.
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Very Happy

I have had this travel APAP machine for 3 months and used it two weeks solid in Italy. I love the size and convenience. While it is a bit noisier than my home unit, I found no issues sleeping without the humidifier or noise attachment. Plug it in and go. It arrived with some older CPAP settings that must have come from an older prescription. But after getting those modified it has been perfect. I paid for this with my own money as insurance deems it non-essential, even for those of us who travel extensively. All I can say is I would spend my own money all over again for this unit. It has made my life traveling much better!!

Reviewed on 12/05/2018
5 out of 6 customers found this review helpful.
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Small but Noisy

This travel unit is convenient to travel with because I don’t lose half my luggage space the way I do with my Resmed 10 unit. Having said this Z1 is extremely noisy, I am a lite sleeper and am struggling to use this unit effectively because of the noise level at the mask.

Reviewed on 09/06/2018
4 out of 5 customers found this review helpful.
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Compact and quiet

Just took my first overnight trip with my new APAP. Everything including my mask fits in a space of a six pack of Coors. Also very light. The Z1 is so quiet my wife (who hears everything) thought I had quit breathing. I recommend buying the longer hose. I had the unit on the bed because I move around a lot and 4 foot is too short to leave it on the night stand.

Reviewed on 06/15/2018
joe p
5 out of 6 customers found this review helpful.
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I used it for the first time and am so glad I bought it!

I've been a cpap user for 15-20 years, and like many people it has changed my life for the better. When I traveled though I either packed up the home cpap or used an old one, it was never a good situation. I finally decided as I've aged and retirement beckoned and my wife and I are traveling more the time had come for sure to invest in a portable machine, but which one, they all seem to have shortcomings or drawbacks. After weighing the pros and cons, I decided to go with the HDM Z1 Auto Travel with the battery for flight. I had read that some people thought it was loud but I decided to chance it. The first time I used it was in a hotel and the next morning my wife asked me if I had even used it, that's how quiet it was. Hook up took maybe 3-4 mins. we're flying to Europe next month with our granddaughter and I'm curious to see how it works on the overnight flight with the battery, but I'm expecting no problems...

Reviewed on 05/26/2018
5 out of 6 customers found this review helpful.
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What I hoped for

I travel between 50 and 60 nights per year on business and personal matters. My regular CPAP machine travels adequately when in a car, but when flying, traveling light is the name of the game. My travel machine is small enough to fit easily in a backpack and still allow me to have everything else I need. While some complain about the noise, neither my wife nor I feel the machine noise is any more than my regular machine. Breathing noise seems to be a little louder, but it didn’t keep me awake. One thing that was a little disappointing is that I was not able to adjust the settings myself - had to take it to a CPAP shop, along with my prescription. Overall, a smaller machine will make travel more convenient.

Reviewed on 03/30/2018
Tom F
5 out of 6 customers found this review helpful.
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Mysteries Solved. (What you need to know)

Summary Recommendation: First replace the narrow slimline hoses. Get a 1' standard diameter hose for the Qtube muffler in advance. Then run the Z1 15 to 20 hours before trying to actually use it. Then and only then, it be a good travel CPAP.


Small and lightweight. Although the muffler adds a little more bulk, see noise discussion below.

Temporary Negative:

Noise issue: The outside of the Z1 is very quiet and not the source of the widely reported noise problem. Many have reported a serious noise coming through the hose. I agree, at first there was a loud whirring noise coming from the air supply. Night 1, I could not sleep at all with the noise, and switched CPAPs. Night 2, I got 3+ hours of sleep before switching back to my regular CPAP. At that point, I gave up and resolved to return it. Night 3, I skipped it completely. Night 4, my wife convinced me to try again, and I got all the way through the night. Night 5 was good, and the Z1 did not seem as loud. The next morning, the whirring sound was essentially gone. The rushing air sound was about the same as my older S8 CPAP. So, after 20+ hours of use, the obnoxious whirring noise, had ended. Note that some new motors or blowers will do this till the bearings ‘wear-in’ or ‘run-in’ and the metal to metal bearing friction ends. I believe that is what happened. Improved quality control or a break-in procedure would solve many noise complaints.

Qtube muffler: That is marginal at best, and did little or nothing for the whirring bearing noise. After finding and connecting a standard diameter 1' hose, the Qtube seems to help a little with the rushing air sound.


Air restriction: To make a small system, the small air output and delicate looking adapter are apparently needed. But the narrow diameter slimline tubes are simply stupid in my opinion. I am a 190 lb. adult male with good lung capacity. At first, I found myself inhaling so hard that I was literally fighting for air. (Try this: Stand or sit while holding a good flexable silicone mask loosely with one hand. Run the CPAP and breathe normally. A good cpap will cause slight flexing of the mask. The Z1 flexing / pulsing was tremendous at first.) I got rid of the slimline hoses on both the mask and muffler, and that helped a lot. Once the motor bearings ‘wore-in’, air flow improved to maybe 90% of ideal. There is still some pulsing of the air, but now it is similar to my older S8, and very tolerable. With the mask strapped on, pulsing is hard to detect. The Airsense 10 is so smooth that it makes both the other CPAPs seem crude. But the Airsense 10 is not small or light for travel. After many setting adjustments, it is now set for APAP-2, 8.0 to 9.0 cm, zero ramp.

Air Flow bottom line. Get rid of the slimline hose(s), and the remaining small air outlet is not a big deal. Regular diameter short hoses can be found online (try CPAP2U). With a regular diameter hose, and the required motor ‘wear-in’, air flow is good for a large male with good lung capacity. It is not smooth as silk like the ResMed Airsense 10, but it is perfectly adequate for travel.

Voltage requirement: At the same time as receiving the Z1, I also received a 12V DC lithium-ion power supply which I wanted to use for power outages. The included HDM 110v AC power supply puts out about 15v DC. 12+v DC from a car cigarette lighter receptacle also works if the battery is good. But below 11.9v DC, the Z1 will simply shut down. The Z1 requires 12v to 15v DC, and do not try to feed it anything less than a full12v. Some of the modern 12v battery operated power supplies do not produce 12v after a very short usage time. Just be aware that a solid 12v up to 15v is needed for DC operation. The overpriced HDM 12v DC plug adapter does nothing to boost or stabilize low voltage to a usable level, but it does have a heavier wire gauge, so that will help a little with a declining 12v battery. I did not try the HDM battery system.

Electronics / Reading Data. You can set CPAP vs APAP, pressures (half cm increments), ramp time, and exhalation relief using the machine buttons. The clinical manual can be found online. You Can Not read results with the machine buttons. That is a problem. If you want to read your results, you must connect to a smart phone or windows computer. The Android app is unchanged in 2 full years since it’s first release, and has one of the worst Android App ratings. If you only use the Z1 for limited travel, then maybe reading results is not important. So far, I have not tried either electronic connection, but will eventually do so.


Size and weight are terrific, especially compared to my first CPAP 20 years ago.

Noise starts out being terrible. But after 20+ hours of ‘run-in / wear-in’, the ‘whirring’ noise problem ended on this Z1. Ditching the small diameter / slimline hose also helped for noise and was required for air flow. For my wife, there is no ‘outside noise’ issue. The Qtube muffler may not be worth the money or bulk.

Air restriction was a problem at first. Again, the blower motor ‘wear-in’ time and conversion to standard diameter air hoses were both required. New out of the box, with the small diameter hose, it was like breathing through a towel or two. Now my Z1 air flow is good, and similar to my older ResMed S8 Elite, but not great like the Airsense 10.

Voltage requirements are probably only a problem if you plan to camp or use a backup with an external battery. A full 12-15v DC is required. If you only travel to places with stable AC power like hotels, then this is not an issue.

Additional required electronics is a negative. I want to read AHI once in a while, and am not happy a computer and/or smart phone (with a bad app) is required.

Final Conclusion: At first, I decided to send the Z1 back. Now after 9 nights of partial or full use, and the above changes, I will keep it. It gets 4 stars because it is so small, light, and yes, now quiet. It will be good for travel, but not as a substitute for an Airsense 10 at home. The Qtube muffler might get returned, and a backup Z1 to air hose adapter will be ordered.

Reviewed on 12/02/2017
3 out of 4 customers found this review helpful.
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Better Than Expected

Been using a CPAP for less than a year, but it has made a difference in my quality of life. Current machine is a bit bulky and difficult to travel with. Researched many smaller, travel CPAP machines and settled on Z1 Auto. It met all of my needs for travel. Many of the other "travel" models need large humidifiers to make them work similar to home models. Almost like they are hiding this aspect of their machines to make them more attractive. Once you add their humidifier, they can almost be as large or larger than the home models. You have to read the fine print. One model with an HME said it can't be used with full faced masks. Another issue as that is what I use.

Overall, I am very happy with the Z1 Auto. Other reviews I read said it was noisy. It is a bit noisy, but I stash it in a drawer and that effectively mutes any sound. Didn't realize that the Z1 Auto is an APAP machine which is the preferred method of treatment for sleep apnea. APAP automatically adjusts air pressure to suit ones needs. Granted CPAP does also, but not as much. I think a CPAP has a narrower range of pressure versus an APAP. Don't quote me on this.

Like the Nitelog app for keeping track of usage. My other machine requires me to bring machine into doctor's office to get any data off.

No complaints about the Z1 Auto. First time using an HME and I will get into that on a separate review.

Reviewed on 11/28/2017
Dallas, TX
3 out of 4 customers found this review helpful.
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I'm so happy with my new c-pap machine. I love to travel and hated dragging along my big, bulky, heavy c-pap machine. My new Z1 Auto Travel Machine is a dream come true. It fits in the palm of my hand and can be placed in my suitcase without any problems. I would highly recommend the Z1.

Reviewed on 05/22/2017
60 out of 101 customers found this review helpful.
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Works as expected

The unit is a little noisy as the reviews said. It starts on low pressure and it really can't be heard on low. When I noticed the noise was the first morning when I woke. After a few nights I really didn't notice it any more. I purchased the Qtube and the small tubing. I seemed to think it is quieter with the normal large tuning so I quit using the small. I like the Bluetooth interface with the phone. The app allows you to get trends on how you sleep after syncing. The app isn't made to launch aircraft but it serves my needs for the APAP. I was on the fence about purchasing but I'm glad I took the plunge. The size is amazing... so much easier to travel with. Over all very pleased so far. I would purchase again and recommend to anyone. If it's within your purchase range and your not a super light sleeper... like everything wakes you up... go for it!! You won't regret it! Hope this helps!

Reviewed on 03/16/2017
David J
88 out of 144 customers found this review helpful.
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Love the little

I am so happy with my travel z71 APAP❣ It is a great little machine and as quiet as my Resmed Airsense 10, and so convenient to pack and go places now. It makes going places so much easier now as I spend nights away from home with parents that are needing me. I use nasal pillow as I don't care for masks and it works excellent!

Reviewed on 12/04/2016
261 out of 505 customers found this review helpful.
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Perfect machine for traveling!

Easy to assemble, easy to pack and same therapy results from my ResMed machine. I used the Z1 on a guided tour. Great! I highly recommend the Z1!!!

Reviewed on 09/27/2016
288 out of 546 customers found this review helpful.
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Long-term use

Almost 12 months using Z1 Auto. Have bigger travel CPAP, but retired it. This fits in my carry-on, has 8-hrs battery and works. Easily set-up. Recent firmware upgrade to eliminate over-rev. Complete app for data-management and reporting. I travel over 20K mi/yr, and have used this in homes, cars, RVs, motels, and over nite with battery only on my deck. I even used it in Cardio ICU after stenting! That's right, battery powered it is hospital-safe.

IF you are active, travel a lot, and have to handle your own luggage, this is the one.

Reviewed on 04/03/2016
Sixty-years Nerd
West Coast
410 out of 795 customers found this review helpful.
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Great Travel Machine

The Z1 is a great little machine. Coupled with the HME! It does the job quite well. I use the machine 3-4 nights per week, every week, while traveling by air in the US and abroad. As indicated by others, it is slightly noisier than many of the larger machines, however the noise is manifested at the mostly at the mask. I use a Resmed P10 nasal pillow and it is only very slightly noisier than with my PR System One. If you travel just a few times a year, this solution can be pretty costly. I travel 45-50 weeks a year, sometimes with segments on regional aircraft. I can place this device in my business backpack or laptop bag and carry it on any aircraft without worrying about gate checked luggage, etc. I do look forward to HDM improving their compliance software and porting to Apple OSX. Do be sure you understand the difference in data collection between the Z1 EZ Breathe and the Z1 Auto, as the Auto does collect and display more incident data. Overall a 4.5 instead of 5 because of the needed compliance software improvements.

Reviewed on 03/05/2016
400 out of 772 customers found this review helpful.
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