Searching the FAQs helps find answers to many questions.

Do I need a prescription for the Z1?
Yes, we require a copy of your prescription with your order.  Please be sure that the prescription is for a CPAP and indicates a fixed pressure setting (ex:...
Fri, 6 Mar, 2015 at 11:09 AM
Do I need a micro-SD card to view my data?
No, the Z1 stores data internally on a flash memory.  Data can be downloaded to your PC using the USB cable included with the Z1.   The micro-SD port is d...
Mon, 6 Oct, 2014 at 4:15 PM
Is the Z1 covered by Medicare or Insurance?
Unfortunately, we do not work with insurance providers through our online sales but the Z1 is coded the same as other CPAP devices to be covered by insura...
Mon, 22 Sep, 2014 at 9:28 AM
Where Can I Buy the Z1 Locally?
Our list of local equipment suppliers is expanding daily. Here is the address on our website for the latest list. https://hdmusa.com/store-locator-map/ ...
Mon, 30 Jul, 2018 at 3:52 PM
Can I view my sleep-data, events-data, or compliance-data?
Yes. Sleep data can be imported from both the Z1 CPAP and the Z1 Auto onto the free HDM DataViewer software. Currently the software is only PC/Windows compa...
Fri, 29 Jan, 2016 at 11:41 AM
Does the Z1 have a pressure-relief function?
Yes. The Z1 uses an advanced algorithm called Z-Breathe™. Z-Breathe™ has 3 settings: ranging from moderate relief to maximum relief for the expiratory phase ...
Fri, 29 Jan, 2016 at 11:53 AM
How should I clean my Z1?
Please refer to the owners manual for complete instructions, but typically you would wipe down the outside of your Z1 with a damp cloth on a weekly basis. ...
Wed, 8 Oct, 2014 at 10:41 PM
How long is the warranty?
The Z1 devices are warranted for 3 years under normal use and care. The HDM Powershell is warranted for 2 years under normal use and care. The HDM Ba...
Fri, 29 Jan, 2016 at 11:54 AM
When the display says “REMINDER” what does that mean?
REMINDER is telling you that there is an excessive air leak. The most common reason for this to happen is that the mask is not being worn properly or is off...
Wed, 23 Aug, 2017 at 11:52 AM
How often should I change my filter?
It is best to purchase a 2 pack of filters each month and change out your filter every two weeks.
Tue, 30 Sep, 2014 at 9:35 PM