Here are the most frequently asked questions about the Z1 and Z2 CPAP lines. Please note that most FAQs are relevant to both the Z1 and Z2.
Click on the category to see a full list of questions. Or use the search bar to enter a question and search more quickly.
Below the FAQs is a video showing how to set the comfort settings, Z-Breathe and Ramp, on the Z1 and Z2 CPAP and Auto CPAP.
Please email us at supportUS@breas.com for help.
Changing Settings (11)
If you are having trouble connecting an iPhone 11 to Nitelog and have a Z1 or Z2 manufactured before June 1, 2020, you may need to upgrade your firmware.
All Z2 Auto CPAPs manufactured after June 1, 2020 have the new firmware already installed.
The new firmware only corrects a connection issue between the iPhone 11 and the Z1 and Z2 Autos to Nitelog.
Upgrade to the new firmware is not necessary unless you have an iPhone 11. It does not affect the performance or functionality of the Z1 or Z2.
Click on link below for more information.
To change the date and time on your CPAP, go to the following link, and download the “Z1 Auto Firmware Upgrade” program onto a PC computer.
http://breas.us/cpap-user-guides-and-software/
Next, open the upgrader shortcut on your desktop, plug the Z1 into a power supply, and connect the Z1 to the PC using the USB cable that was included in your Z1 box.
In the upgrader program, there is the option to “Set Date and Time”.
You can change the date and time on your Z1 or Z2 Auto, by connecting it to our Nitelog app on an iPhone/iPad or most Android devices. The app should prompt you to sync to the local date and time upon start up. If it does not, or if you accidentally hit “no” when prompted, swipe left at the main screen (that shows your Z1/Z2 screen) to access the settings menu. You can manually adjust the date and time on this page.
You can also use the Z1 Auto Firmware Upgrade program on a PC computer to adjust the date and time. Download the upgrade at the following link:
http://breas.us/cpap-user-guides-and-software/
Plug the Z1 Auto into a power source, and connect it to the PC using the USB-micro USB that was included in the Z1 box. Use the “Set Date and Time” button to adjust the date and time. Do not upgrade the firmware unless you are sure it is out of date.
You can change the date and time on your Z1 or Z2 Auto, by connecting it to our Nitelog app on an iPhone/iPad or most Android devices. The app should prompt you to sync to the local date and time upon start up. If it does not, or if you accidentally hit “no” when prompted, swipe left at the main screen (that shows your Z1/Z2 screen) to access the settings menu. You can manually adjust the date and time on this page.
You can also use the Z1 Auto Firmware Upgrade program on a PC computer to adjust the date and time. Download the upgrade at the following link:
http://breas.us/cpap-user-guides-and-software/
Plug the Z1 Auto into a power source, and connect it to the PC using the USB-micro USB that was included in the Z1 box. Use the “Set Date and Time” button to adjust the date and time. Do not upgrade the firmware unless you are sure it is out of date.
By law we are unable to distribute the instructions to change the pressure settings for patients. If you have questions on the appropriate pressure on your device, please contact your prescribing doctor and/or sleep specialist.
If you are a prescribing doctor and/ or sleep specialist, call us at 855-436-8724 so we can send you the clinician’s manual.
Hold down the UP arrow until 00 minutes is flashing.
Use the UP and DOWN arrows to choose the time you would like (5 minutes, 10 minutes etc.).
Once your desired time is selected and flashing hold down the middle power button until the LCD screen reads “accept” (LCD screen should now show a bar graph in the top left-hand corner).
Hold the DOWN arrow button until a pressure reads (will be flashing).
Use the UP and DOWN arrow to adjust the pressure and then hold down the middle power button until you see the word “accept” on the LCD screen. Please note: you must set the ramp time before setting the ramp pressure. If the time is 0 minutes, it will not work.
To change the Z-Breathe setting on your device, start with the unit in standby mode (reading 0.0 for the pressure). Simultaneously hold down the UP and DOWN arrow buttons until APAP or CPAP-2 is flashing. Use the UP and DOWN arrow buttons to adjust the setting and hold down the MIDDLE power button until you see the word ACCEPT on your screen. The unit will then return to standby mode.
Your Z1 or Z2 should have been set to the specific pressure(s) stated on your prescription. You will need to call the provider you purchased your device from to discuss this further, as they hold your prescription.
If you want to bring your Z1/Z2 to your local doctor or licensed therapist, we can email them the Clinicians Manual with the instructions to set your device.
ON: Press and hold the UP ARROW while plugging the power cord into the end of the Z1/Z2 until the LCD screen reads – bt-on
OFF: Press and hold the DOWN ARROW while plugging the power cord into the end of the Z1/Z2 until the LCD screen reads – bt-off
Z-Breathe is a proprietary algorithm engineered in the Z2 to smooth out the breathing cycle while enjoying the benefits of CPAP treatment. Typically users experience pressure swings while breathing on a CPAP device. Pressure swings occur as a spike in pressure during exhalation and a drop in pressure during inhalation. Z-Breathe is designed to minimize the impact of spikes and drops while keeping the pressure constant, thereby delivering more comfortable therapy.
Pressure swings can vary between users due to lung capacity and other factors. For this reason we have created 3 levels of Z-Breathe to accommodate individual users’ preferences:
— 1 offers mild pressure swing relief
— 2 is the Default Setting and offers moderate pressure swing relief
— 3 is the most aggressive setting for pressure swing relief
To change the Z-Breathe setting on your device, start with the unit in standby mode (reading 0.0 for the pressure). Simultaneously hold down the UP and DOWN arrow buttons until APAP or CPAP-2 is flashing. Use the UP and DOWN arrow buttons to adjust the setting and hold down the MIDDLE power button until you see the word ACCEPT on your screen. The unit will then return to standby mode.
Dataviewer Software (2)
DataViewer is only compatible with Windows based operating systems.
The software can be downloaded at http://breas.us/cpap-user-guides-and-software/
Under the tab Software Downloads, click on Download DataViewer.
Open the folder attached and double click on “HDM Data-Viewer-2.0.0-2.2”.
Then click “HDM-Data-Viewer-v2_0_0_2-Setup”.
A message will then pop up named “Compressed (zipped) Folders” and you will need to click on the button that reads “Extract all”.
After that another message will pop up reading “Select a Destination and Extract Files”. Once you see that please click on the button that reads “Extract”.
A folder will pop up again and you will need to double click on “HDM Data-Viewer-2.0.0-2.2”.
You will then proceed to click on “HDM-Data-Viewer-v2_0_0_2-Setup”.
From there a message will pop up and will read “Welcome to Install Shield Wizard for Human Design Medical Data Viewer” and you will need to click the “next” button.
After that click on the Modify circle and continue hitting the “next” button until it reads “ready to modify the program” and click on the “install” button that is bordered with blue.
Click the button that reads “Finish” which is outline in a blue color.
The program should upload directly to your desktop and will read “HDM Data Viewer” and will look like a calendar with a bar graph on it with a red line across the top.
If you use a Macintosh computer, you will need a Windows operating utility such as Parallels or Bootcamp. These are two programs that can be purchased at:
https://support.apple.com/boot-camp
If you have further questions, please do not hesitate to contact us at 855-436-8724
Unplug everything and then re-plug it back into the machine.
Restart your computer and open up DataViewer and try syncing device.
If that does not work, try uninstalling and then reinstalling DataViewer and connect all parts back to computer and Z1/Z2 device.
Hit F10, press “clear database” and then hit sync device.
Fault/Reminder Codes (8)
When the Z1 or Z2 is in standby mode, the screen reads 0.0 in the pressure area. If the screen is not displaying 0.0 when turning your machine on, would indicate that it needs to be returned for repair. Please contact your provider, and they will advise you on what steps to take.
If the display screen shows your pressure, and the fan has not started blowing air within thirty seconds, then the blower has failed and the machine should be replaced. Please contact your provider and they will advise you on what steps to take.
The Fail 1 code means that you are hitting the power button while the motor is still running. It will happen when you hit the middle button repeatedly.
A Fault 22 means that there is an SD card stuck in the SD port of your Z1 machine and needs to be removed from the device. Do not attempt to remove the SD card yourself.
A Fault 33 or 21 means the device has failed. Please click here to complete the form to contact us about replacing or repairing your device.
A Fault 66 indicates your machine needs to be reprogrammed. Please contact your provider to coordinate resetting your device.
When you see 18.8 on your Z1 or Z2 screen, it is part of the normal start up sequence and should go away when the device is ready in stand by mode and showing 0.0.
If it does not go away, it could indicate that there is a defect with the display panel, and will need to be returned through the provider you purchased your machine from. Please contact your provider and they will advise you on what steps to take.
The word REMINDER indicates there is an excessive air leak somewhere. If it is happening while you have your mask on your face, please disconnect all parts to the Z1/Z2 including your mask and tubing (battery from the PowerShell, PowerShell from the machine, and unplug it from the wall). Reassemble the parts to the Z1/Z2. REMINDER will only appear on the Z2 if you have turned off the Auto Start/Stop function. Otherwise the Z2 will stop when your mask is removed.
If the REMINDER reappears, the device will need to be returned. Please contact the provider you purchased your machine from to assist you.
General Questions (15)
No, the data cannot be transferred from one device to another. Data on the Z1 or Z2 will be stored for the usage on the actual unit itself.
If you are having trouble connecting an iPhone 11 to Nitelog and have a Z1 or Z2 manufactured before June 1, 2020, you may need to upgrade your firmware.
All Z2 Auto CPAPs manufactured after June 1, 2020 have the new firmware already installed.
The new firmware only corrects a connection issue between the iPhone 11 and the Z1 and Z2 Autos to Nitelog.
Upgrade to the new firmware is not necessary unless you have an iPhone 11. It does not affect the performance or functionality of the Z1 or Z2.
Click on link below for more information.
By law we are unable to distribute the instructions to change the pressure settings for patients. If you have questions on the appropriate pressure on your device, please contact your prescribing doctor and/or sleep specialist.
If you are a prescribing doctor and/ or sleep specialist, call us at 855-436-8724 so we can send you the clinician’s manual.
ON: Press and hold the UP ARROW while plugging the power cord into the end of the Z1/Z2 until the LCD screen reads – bt-on
OFF: Press and hold the DOWN ARROW while plugging the power cord into the end of the Z1/Z2 until the LCD screen reads – bt-off
The Z1 must be returned to replace the silicone outlet tube. The outlet tube is the white rubbery piece that sticks out of the end of the device. Please contact the distributor you purchased your Z1 from, and let them know your unit needs to be returned to the manufacturer.
The PowerShell auxiliary plug is designed to work with 12v systems. If the system drops below 12v the system may shut off.
The dim light is on a timer and should turn off after a few moments. Unfortunately, there is no way to change the timer on the backlight of the LCD screen.
When the Z1 or Z2 is in standby mode, the screen reads 0.0 in the pressure area. If the screen is not displaying 0.0 when turning your machine on, would indicate that it needs to be returned for repair. Please contact your provider, and they will advise you on what steps to take.
If your new Z2 Auto is randomly shutting off during the night, it may be the Auto Start/Stop feature misinterpreting a leak during the night. Turn off the Auto Start / Stop feature using the instructions below.
If the display screen shows your pressure, and the fan has not started blowing air within thirty seconds, then the blower has failed and the machine should be replaced. Please contact your provider and they will advise you on what steps to take.
We have not tested the SoClean for use with the Z1 or Z2, so we cannot recommend the use of this product for cleaning.
The Z1 and Z2 run on electricity from 100-240V which means you will not need a converter for international travel. You will only need a plug adapter to fit the right configuration for the country you are visiting.
Our tubing comes in two different lengths- 4 feet and 6 feet slim style. They are 15 mm in diameter. You can also use standard tubing with the Z1/Z2, which is 19-22 mm diameter.
The most common cause of a pressure increasing, beyond what is necessary, is a leak in the system/mask. It may be a leak in the connections to the mask, or the hose. Please check to make sure these connections fit tightly.
Another reason is an excessive leak at the mask. Please make sure you have a proper seal between the mask and your face.
Check the connection of the tube adapter and the outlet tube (the rubber piece where the tube adapter connects to the machine). If the tube adapter is not properly seated in the outlet tube, the pressure sensor may not be getting the information it needs to regulate the pressure. Also check to make sure your outlet tube is not torn. If it is torn, the device will need to be returned to be repaired.
The last reason could be the Z1 may be sensing an obstruction, which reads as an apnea, and thus increasing the pressure. This could be caused by congestion, or a mask system that has very low flow rate. If you have a mask with very low flow rate, such as some of the very small nasal pillow masks, you may want to try a mask with less restriction such as a nasal mask. If none of the above are successful, please contact the provider you purchased your Z1 from.
HME's (Heat Moisture Exchangers) (5)
No, you are not at risk of rebreathing as long as your mask has an exhalation port and your device is turned on.
There are several variables that determine how long your HME will last. Your pressure setting, how often you use the HME, and how you store it. It is recommended that the HME is stored in an airtight container/zip lock bag when not in use to help it last longer. The estimated time is 7-30 days depending upon the variables listed above. If you feel it is not providing enough humidity, it is time to replace the HME.
To get more humidification, I would recommend getting a lubricating nasal spray, nasal gel, or an in-room humidifier at your residence or hotel.
The Heat Moisture Exchanger (HME) is a portable humidifier that provides humidification during therapy. The HME works by capturing moisture into the blue sponge as you exhale, and when you breath in, it delivers the humidity back to you.
The HME connects between your mask and your tube. The HME is not as effective unless it is connected right at the mask. For those who have an extension tube as part of their mask, the HME is less effective because the humidity you are exhaling will not reach the HME. Please see the attached picture.
Nitelog App (4)
Nitelog 2.0 Quick Start Guide
Before You Start
You will need the following items near by in order to complete this process.
- Your mobile device- iOS or Android smart cell phone or tablet.
- Your Z1® or Z2 Auto™ CPAP device and power cord or charged PowerShell® and battery.
- Access to your email account by computer or cell phone.
1. Download the App
Apple iOS phone or iPad
- Go to the App Store. Search for “Breas Nitelog”. Download the Nitelog App.
- Make sure the Bluetooth on your iOS device is turned on under the Settings menu.
Android Phone or Tablet
- Go to the Google Play Store. Search for “Breas Nitelog”. Download the Nitelog App.
- Make sure the Bluetooth on your Android device is turned on under the Settings menu.
For Both iOS and Android
- Plug in the Z1 or Z2 using the power cord or PowerShell.
2. Create Free Account
- Select “Sign Up With Email” to sign up and create a new account.
- Enter your First and Last Name
- (iOS) Enter your date of birth by clicking the field and scrolling to the correct date.
- (Android) Enter your date of birth by clicking the year to scroll to the correct one. Then click on the arrows () to select the correct month. Click on the correct day on the calendar. Press OK.
3. Create Password
A password is needed to create the Nitelog account.
- Enter your email and the password for your new Nitelog account.
Note: the password must be at least 8 characters, contain at least 1 uppercase letter and at least 1 number.
- Press “SIGNUP”
- A verification code will be sent to your email. Enter the code on the mobile device screen.
4. Sign in
- Sign in to Nitelog using the email address and password you just created.
- Check “Save my login info” to make future logins easier.
5. Pair device to phone
- Press the Menu icon (≡) in the upper left hand corner of the Dashboard Screen.
- Select “Current Device” from the menu.
- Click “Find Device”.
Your CPAP device will appear under Available Devices as “Breas” followed by the last 4 digits of the serial number.
If you do not see any devices listed verify that the Bluetooth is turned on for both the mobile device and the Z1/Z2 CPAP device. See Troubleshooting Tips below.
- Select your CPAP device by clicking on “Breas####”
A passcode that you create is used to pair your phone to your CPAP. We recommend you use a four digit number that is easy to remember.
- Click “Forgot Password” to create this passcode number the first time.
- Enter your 4 digit number using the number pad on the screen.
- Click “SAVE”
After you click on SAVE, you have 20 seconds to confirm the connection by pressing and holding the Start / Stop button on your Z1/Z2 CPAP. You will see a countdown on the App screen.
- Press and hold the Start Stop button on your Z1/Z2 CPAP.
6. Sync data for first time
- Select “Yes” to sync your sleep data on your CPAP to the Nitelog App. Syncing may take several minutes the first time if there is a lot of data.
- Click “OK” when the data download is complete.
Now you can use the Nitelog App to control your Z1/Z2 Auto, view your sleep data and generate a Compliance Report. Visit https://breas.us/nitelog-user-guides/ for complete instructions on using the Nitelog App.
Troubleshooting
Check the following if the App does not connect to the CPAP device.
- Verify that Bluetooth is turned on on the Z1/Z2. Look for bt-on in the rotating values on the screen above MINUTES with the CPAP plugged in.
To turn on the Bluetooth, unplug the Z1/Z2. Press and hold the up button while inserting the power cord. - Verify the Bluetooth is turned on on the mobile device. Go to Settings on the phone or tablet and confirm that the Bluetooth is turned on.
- Turn everything off and then on again. Unplug the Z1/Z2 CPAP and plug it back in. Exit the Nitelog App and restart the app.
- Check your mobile device version against the compatibility list below. Due to variations in the mobile device systems it is very difficult to be compatible with all Android devices. If you have a large amount of data, the connection may get dropped before completion. Keep trying to connect and sync. It may take more than one try depending on the Android system.
Compatible iOS Systems: Z2 Firmware 2.1.0.9 and later (manufactured after June 1, 2020). iOS iPhone 6s through iOS 11 or later.
Z1 and Z2 Autos manufactured before June 1, 2020 may have an issue connecting to iPhone 11s. Z2 Firmware 2.1.0.9 corrects this issue. It does not affect the performance or functionality of the Z1 or Z2. To get your firmware upgraded by the manufacturer, Breas Medical, go to https://breas.us/z1-z2-firmware-upgrade/ and complete the form.
Compatible Android Systems: Android Rev 5.1 (Lollipop) or later.
Known Incompatible Systems: One Plus Android Phones
This Nitelog Quick Start Guide provides information on how to connect the proprietary mobile app, Nitelog, to the Z1 Auto or Z2 Auto via its embedded Bluetooth capability. Please note all Z1 and Z2 functions can be controlled without the use of this mobile app directly through the Z1 Auto or Z2 Auto device. Nitelog is compatible with both Z1 Auto and Z2 Auto CPAP systems from Breas Medical.
This Nitelog Quick Start Guide is meant to supplement the information in the Z1 Auto User Guide or Z2 Auto User Guide that was provided with the purchase of the Z1 Auto CPAP or Z2 Auto CPAP. It is not intended to replace the User Guide. As such, the owner/user of the Z1 or Z2 Auto System is responsible for reading and understanding the User Guide.
Complete instructions on using the Nitelog App can be found online at https://breas.us/nitelog-user-guides/
On the last day of each month, the Z1 Auto only ‘logs’ the time used between the start of usage and midnight. It does not report any time between midnight, and morning of the first morning of the month. Is there a fix to this problem?
Your viewing window may be set incorrectly. In order to fix this, go into chart settings by using the gear button in the top right corner of the main Nitelog screen. Change your usual sleep time to the time you went to sleep and change the hours of sleep to 12. You should now be able to view your data for the night selected.
If Nitelog is giving you an error message that your account is already set up while you are trying to set up an account, try typing in your email address with only lower case letters. This usually corrects the issue.
Nitelog 2 is only available for download in the USA and China. If you are in another country and try to download the app from the app store, it will say it is unavailable. We do not currently have a timeline as to when it will be available in other countries.
PowerShell and Battery Questions (3)
No, you cannot run your Z1 or Z2 on a DC mobile adapter however, it can be used to charge the PowerShell. We cannot guarantee the mobile adapter will function with all cars, as battery voltage isn’t uniform.
Once the battery is fully charged, please disconnect your Z1/Z2 machine from your PowerShell and remove the battery from the PowerShell, or it will slowly drain the battery over the course of 2-3 days.
Make sure you hear a clicking noise when inserting the Z1 or Z2 into the PowerShell.
If it is still not charging disconnect the Z1/Z2, battery, and power supply and reconnect.
Proceed to recharge your unit again for 10-12 hours. If it is still not holding a charge it will need to be sent in for a return by the provider you purchased your unit from.
Please keep the following information in mind after charging your Power Shell:
- Disconnect the battery from the PowerShell after a full charge to prevent the battery from slowly draining within a 2-3 day period.
- The battery needs to be charged for 10-12 hours to ensure a full charge.
- The bars of battery life on the LCD screen need to be full, and not blinking.
- The PowerShell battery will not charge while it is operating the Z1/Z2 for treatment. The battery must be charged between treatments.
Purchase Questions (10)
We do not bill insurance. We suggest that you contact your insurance provider to inquire about reimbursement for your CPAP device and use HCPCS code E0601.
Please follow the link to find the nearest distributor in your area or call us at 855-436-8724.
http://breas.us/where-to-buy-a-cpap/find-a-medical-equipment-supplier/
The Z1 system includes: Z1 device, tube adapter, 4 ft. slim-style tube, power supply cord, custom USB cable, HME (travel humidifier), 2 air filters, the User Manual, and the Getting Started Guide. It does not come with a mask. Most people use the mask they are already comfortable with.
The Z2 system includes: Z2 device, tube adapter, 4 ft. slim-style tube, power supply cord, custom USB cable, HME (travel humidifier), 2 air filters, a Qtube, the User Manual, and the Getting Started Guide. It does not come with a mask. Most people use the mask they are already comfortable with.
The main difference between BiPAP and CPAP machines is that BiPAP machines have two pressure settings: the prescribed pressure for inhalation (ipap), and a lower pressure for exhalation (epap). The dual settings allow the patient to get more air in and out of their lungs.
A fixed pressure CPAP device provides a fixed therapeutic pressure. An Auto adjusting CPAP provides a variable therapeutic pressure throughout the resting period. The benefit of an Auto adjusting machine is that it changes with your varying pressure needs resulting in a 40% reduction in mean pressure.
The warranty on the Z1 is three years from the date the patient purchased the unit from the reseller, with their receipt. If the patient does not have a receipt, the warranty period starts from the time the DME purchased the device plus a two-month grace period.
The warranty on the Z2 is two years from the date the patient purchased the unit from the reseller, with their receipt. If the patient does not have a receipt, the warranty period starts from the time the DME purchased the device plus a two-month grace period.
Please contact us at 855-436-8724, and we would be happy to discuss why the Z2 is, or is not, an appropriate choice for you.
No, a BiPAP prescription is specific to a BIPAP machine and cannot be used for a CPAP machine and vice versa. You will need to discuss this with your doctor if you would like to purchase a CPAP device.
Q-Tube (1)
The Q-tube or Qlite is an inline CPAP muffler that helps mitigate the wind noise one may hear in the mask. The Qlite has replaced the original Q-tube. It is lighter and does not contain any replaceable parts.
Travel Questions (6)
Yes, the Z1 and Z2 CPAPs are FAA compliant for use on airplanes. The FAA compliance letter is in the back of the User Guide. Detach it from the Guide and bring it with you on your flight.
No, we currently do not sell solar chargers. Additionally, we are not aware of a solar charger that works with our device.
The PowerShell auxiliary plug is designed to work with 12v systems. If the system drops below 12v the system may shut off.
The Z1 and Z2 run on electricity from 100-240V which means you will not need a converter for international travel. You will only need a plug adapter to fit the right configuration for the country you are visiting.
Our units have been tested for up to 8,000 feet. We cannot guarantee the operation of the device above 8,000 feet.
If you need additional help, please email Customer Service at
or call
855-436-8724 Monday-Friday 8:00 am- 5:00 pm.