3. Fit the last area with the hose that is attached from the machine to your mask. To ensure that you have the best comfortable mask fit be sure to attach the tube and headgear and turn machine on so that you get the exact feel of how the system is going to work. If you feel any leaks, turn off the machine, try adjusting your mask or repositioning the mask and turn on the machine. If you still feel leaks contact your supplier.
4. Lastly, be sure to lay down in common sleeping positions with machine on to check for leaks. Ordering on line is not only convenient but allows you to try the product in your personal environment so be sure to test your mask just like you will be using it. Store locations allow you to try the mask on while sitting. This can lead to a misleading fit. Think about it you need to test your new mask in your environment to ensure you have a proper fit.