CPAP FAQs

CPAP FAQs

In case you are looking for them, here are the Wiki FAQs which discuss how to use the CPAPtalk.com CPAP Wiki.

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This is a list of CPAP FAQs. It is a great place to get started, especially if you are a new CPAP user. You are free to add common questions and answers here, regarding the use of an xPAP machine, or Obstructive Sleep Apnea. Answers should preferably be short in nature and link to more detailed articles in the CPAPtalk.com CPAP Wiki, if necessary.

Common CPAP Side Effects

Why is air leaking from my mouth?

Air leaks from the mouth whenever the mouth is opened during CPAP therapy. This occurs for many reasons, but a very common one is due to nasal irritation from the CPAP airflow.

The correlation to a lack of humidification and mouth leaks is a topic being heavily researched. Studies are now being conducted on the hypothesis that a large amount of mouth leakage is caused by the following cycle:

  1. CPAP therapy is used with ineffective or no humidification.
  2. The nasal membranes are unable to adequately condition the increased airflow and after a few minutes the   

airway and nasal passages become dry.

  3. To remedy the dryness and obtain moisture, the body uses the mouth to breathe.
  4. CPAP air follows the path of least resistance and leaks out of the open mouth.
  5. The air leaking through the mouth causes more dryness.
  6. Patient wakes up feeling tired with significant dryness in mouth and dry, swollen nasal passages. 

The answer to this cycle is humidification. If the mouth continues to open during sleep, a chinstrap may be needed to hold the jaw up so that the mouth can close. If mouth breathing continues, a full face mask that covers the nose and mouth is indicated.

For the complete list of CPAP side effects see CPAP.com List of CPAP Side Effects

Common Equipment Problems

How do I stop CPAP mask leaks?

Supplies

Teflon tape

Moleskin

Quattro

Teflon Tape: "I searched this forum and found out i had anolder Quattro that had the elbow leak problem, so I fixed it with some Teflon tape." - Uncle_Bob

Replacement

How often should I replace my mask?

• Many masks have replaceable cushions, pillows, or other parts. Typically, a mask cushion should be replaced at least once every six to nine months. If your mask does not have a replaceable cushion, you may need to buy a whole new mask.

How often should I replace my headgear?

• It depends. Sure signs your headgear needs to be replaced are leaks, having to over tighten the headgear, elasticity is gone, etc.

When should I change the filters on my xPAP machine?

• Fine Filters should be replaced approximately every 30 days, or as necessary. If you can visibly see some dirt or dust on the fine filter then it is time to change it.

Cleaning

How do I clean my mask and hose?

• There are many methods available. Most manufacturers of CPAP Masks include cleaning instructions in the package with the mask. Baby shampoo or ivory bar soap is often used.