The Z2 Auto Travel CPAP Machine from Human Design Medical was released in 2019 and is very popular among the people that have tried it. The secret? When compared to its predecessor, the Z1 Auto, the Z2 is 29% quieter and has a different pitch to the motor. It’s also value-priced at around $589, making it an attractive option for busy travelers.
How does it stack up against the competition? Read on to find out!
Our Ratings for the Z2 Auto Travel CPAP Machine
Noise Level – 7
The Z2 Auto checks in at 26 decibels, but the pitch of the motor is much improved over the Z1, and that’s a big difference here. Because of the improvement in this area, the Z2 is rated highly. It’s a quieter CPAP machine, and the free Q-Tube Muffler is nice.
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Cost – 9
The Z2 Auto is a little more expensive than the Z1 but is still value-priced compared to other machines in the travel category. It also comes with a lot of nice freebies, like a free Q-Tube CPAP Muffler and a Heat Moisture Exchange Unit (waterless humidification).
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Warranty – 8
The 2-year warranty is what most CPAP machines have. It covers manufacturer defects and mistakes, but not misuse or abuse. The Z1 Auto has a warranty of 3 years, which is an industry leader. Ultimately, we awarded the Z2 the same score as other machines that also have a 2-year warranty.
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Weight – 9
You can measure the weight of the Z2 in ounces, not pounds. It weighs in at 10.4 ounces, which is a nice weight for a travel machine. It’s roughly the same as the Z1 Auto, so we rate the Z1 highly in that category too.
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Size – 9
The machine is a nice size travel CPAP machine and is roughly the same size as the Z1. It can fit into almost any travel bag, and go anywhere you need.
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Pressure Relief – 9
The Z2 Auto has Z-Breathe Pressure Relief, along with auto-adjusting pressure, making it easy to exhale. The other machines we looked at also have Pressure Relief and auto-adjusting pressure, so we awarded them a similar score.
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Therapy Tracking – 9
The Z2 Auto allows you to download your results to your Windows computer for further analysis. You can also review your therapy results on your phone using the Nitelog Mobile App. When compared to other machines, the therapy tracking features of this machine stacks up well.
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Humidification – 8
The Z2 Auto includes a Heat Moisture Exchange Unit, which is similar to ResMed’s HumidX and recycles humidity from exhaled breath to create the sensation of moisture without needing water-based humidification.
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Smart Features – 8
The Z2 Auto has auto-start and auto-stop and is similar to the Z1 Auto. The DreamStation Go and AirMini are comparable to each other in terms of smart features, and the Z2 comes close but doesn’t have all the extras.
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Battery – 9
Both the Z1 and the Z2 have a battery that’s been custom-tailored to its needs: the Z1 and Z2 PowerShell Battery. The battery works with both machines. In fact, the Z2 can use all of the Z1’s same accessories. This is similar to the DreamStation Go, which also has a companion battery that’s designed specifically for it.
You can also connect to the Z2 with the Pilot-12 Lite and the Z1 and Z2 Mixed Cable Kit. You can also use the Portable Outlet CPAP Battery, which is capable of powering any device with a power supply and plug! The Portable Outlet can also be used with humidification, making it a versatile and flexible battery.
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TOTAL SCORE: 86 / 100 or 86%
|Total Scores for Other Machines|
Overall, the Z2 Auto scored very well across the board and stacks up well against similar travel machines. Ultimately, the differences in noise level and humidification options are the things that separate the Z1 and the Z2. For just a little more money, you’ll get a quieter machine with lots of freebies from the manufacturer that makes this a great buy at around $580.
David Repasky has been using CPAP treatment since 2017 and has first-hand experience with what it’s like to live with Sleep Apnea. He brings the patient’s perspective to the CPAP.com blog and has received formal training in CPAP machines, masks, and equipment.