HDM Z2 Auto Travel CPAP Review

When it comes to summer travel, the key is to keep your bags light! For those who rely on CPAP therapy for a good night’s sleep, the new HDM Z2 Auto Travel CPAP is an FAA-approved, ultra-small, lightweight addition to your must-pack list. The Z1 Auto Travel CPAP started the travel CPAP evolution with its small, lightweight design and portable battery. The Z2 builds upon that success with an upgraded version combining all the benefits of the original including an improved algorithm for more comfort. Measuring 6.48” x 3.3” x 2.0” and weighing only 10.5 oz, the Z2 can be dropped into your carry-on and forgotten. No more bulky, heavy machines to lug around!

HDM Z2 Auto

• Ultra-small, lightweight, auto-adjusting CPAP machine, perfect for travel or at-home use

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Z2 Auto Travel CPAP Characteristics


Building on the design of the Z1, the new machine features an improved, quieter motor. Plus, the Z2 comes with a free Qtube to muffle the noise at the mask.

Auto-Adjusting Pressure

The Z2 uses a proprietary breathing algorithm with a sampling rate of several times per second. As a result, therapy is delivered at a lower overall average pressure than a fixed-pressure CPAP. Plus, the machine will continually adjust the pressure over the course of the night.

Exhalation Pressure Relief

With the Z-breathe technology, the Z2 Travel CPAP machine helps reduce the pressure during exhalation. Users can pick between three settings.

Auto Start/Stop

New to the Z2, the machine features an auto start/stop feature. Therapy begins when the mask is placed on the face and the device senses that you have started to breathe. When the mask is removed or a leak is detected, the machine will automatically stop delivering therapy.


The Z2 uses HME (heat moisture exchanger) cartridges that are inserted between the hose and the mask. The HME captures moisture during exhalation and releases it during inhalation, thus offering the comfort of humification without electricity or additional water.

The HDM Z2 Auto Travel CPAP Machine comes with an optional integrated battery for traveling in areas of limited power.


The Z2 offers an integrated battery option, which is recommended when traveling off-grid or in areas where power may be limited. The PowerShell Extended Life Battery is a rechargeable, lithium-ion battery and provides a full night’s therapy on one charge.


The Z2 Auto is compatible with any mask or tube.

The Z2 Auto Travel CPAP At-A-Glance

Modes Standard, CPAP, AutoPAP, CPAP/AutoPAP wih Ramp
Sound 26 dBA
Size 6.48” x 3.3” x 2.02”
Weight 10.5 oz
Pressure Range 4-20 cm H2O
FAA-Approved Yes
Warranty 2 years

At The CPAP Shop, we are so sure you’ll love the Z2 Auto CPAP, that we are offering you our 30-night risk-free, money-back guarantee. If you are not 100% satisfied with the Z2, return the machine for a full refund. As always, if you have any questions, our knowledgeable team is only a phone call or email away. We’re here to help you!

Chris Vasta CPAP Expert & President at The CPAP Shop


Chris Vasta

Over a 10+ year career at PHH Mortgage managing a $100 million portfolio, Chris Vasta learned the ins and outs of the business world. He learned how to establish business relationships, lead a multi-prong team, and implement strategies for long-term growth. In 2007, Vasta used that experience to transition his role into president of The CPAP Shop. Over his tenure, Vasta has been involved in everything from website design to warehouse layout. His hands-on approach with customers has evolved into an in-depth understanding of the challenges of beginning and adhering to sleep therapy. He often provides his insights on product…

20 Comments Leave new

  • David Richardson

    Integrated battery? What a shame. Are there none that are made to sell extra batteries so you can go off grid while camping for more than a few hours?

  • Anatoly

    Hi Chris, I recently purchased the Z2 Auto CPAP RX ONLY and I need to set the pressure in the range from 4.0 to 6.0 cm H2O. How can I do it? Thank you in advance

    • Chris Vasta

      Hello, Mr. Anatoly. To adjust the pressure of the Z2 machine we would need a new prescription relecting that pressure range.

  • Macpherson Nicola

    Link to printable Breas compliance letter for FAA not working. Can you update your site?

    • Chris Vasta

      Hello, Nicola. That was From Breas site. If you call 866-767-7400 Ext 105 and provide your email, I would be happy to send you the PDF.

  • Becky Saraceno

    what is the return policy if I buy one and find out it just doesn’t work for me?

    • Chris Vasta

      Hello, Becky. The HDM Z2 Auto Travel Capap machine has a 30-day return policy that starts from the date you receive the machine.

  • Bob

    I am planning some off grid motorcycle travel. Can the battery be recharged off the 13.5 volts my motorcycle charging system puts out? If yes, might you know how many hours it would take to charge off an automotive 12 volt outlet?

  • Jim Stern

    Big concern is the lithium ion battery pack. The FAA has limited the size and rating of these batteries. Has the manufacturer received update (11/2019) clearance by FAA to use such batteries. Additionally has the manufacturer received clearance for use of the battery on international flights since 11/2019?

    I am taking a vacation to Europe in March time frame, and use a cpap, but if I can not use a portable one like the HDM Z2 Auto Travel CPAP, then I would not purchase it.

    • Chris Vasta

      Hello, Jim. Yes, the Z2 battery and PowerShell are FFA cleared. However, according to FAA regulations, you have to bring the battery in your carry-on baggage, it can not be in checked baggage. Traveling internationally with the Z2 and battery would not be an issue. The machine goes from 100 – 240 VAC, which is universal. The only other item you may need would be a travel plug adapter with the different prongs. It was last updated on March 13 2019, but I would imagine they can still take them on an airplane without issues. The manufacturer, Breas has a compliance letter you can print. HDM can be reached at (434)-980-8100.

  • Becky Saraceno

    is this machine compatible with all hoses and masks?

    • Chris Vasta

      Hello, Becky. No, it is not compatible with any heated hoses. However, you can use any nonheated hoses. It is compatible with any type of mask because the end of the tubes have a 22mm diameter, which is universal.

  • John Hempel

    I use either a BPAP or CPAP, whichever is built for patients with more extreme sleep apnea. Could this portable actually work for me for traveling? I see no way to provide moisture? How does that work?


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