CPAP Therapy with Supplemental Oxygen

Connecting Oxygen to a CPAP Machine

Some CPAP users, particularly those who suffer from obstructive sleep apnea (OSA), chronic obstructive pulmonary disease (COPD), or other conditions requiring additional oxygen, may discover that they need a supplemental oxygen supply during CPAP therapy.

For those who have been prescribed CPAP therapy with a supplemental oxygen supply, there are a few basic pieces of equipment that are needed: a CPAP mask, a CPAP machine, CPAP tubing, an oxygen concentrator, and oxygen tubing. A bleed-in adapter may also be needed depending on the type of mask you have, as explained below.

Connecting oxygen to a CPAP machine is a simple and straightforward process. However, the procedure for incorporating oxygen into your CPAP therapy will vary slightly depending on your mask type. It is important to identify which mask type you have you can determine which connection option is appropriate for you.

Oxygen Port on CPAP Mask    

Many CPAP masks are already equipped with a built-in oxygen port. If this is the type of mask you have, you can attach the tubing from the oxygen concentrator directly to your CPAP mask. Simply remove the cap covering the port, connect the oxygen tubing, and use your CPAP mask as usual. 

Oxygen Bleed-in Adapter

Some newer styles of CPAP masks don’t have oxygen ports. Masks like this require a special oxygen bleed-in adapter, which is typically connected between the oxygen tubing and the air outlet of the CPAP machine. To attach, first connect the base of the oxygen bleed-in adapter to the oxygen tubing. Next connect the oxygen bleed-in adapter with the oxygen tubing attached, to the CPAP machine. Connect the other end of the CPAP tubing to the mask. Once attached properly, the bleed-in adapter will help feed oxygen directly from the oxygen supply into the CPAP mask.

As always, it is a good idea to confirm your procedure with a doctor to ensure your oxygen concentrator has been attached properly. If you have any oxygen-related questions or concerns regarding CPAP products, connecting oxygen concentrators, or compatibility with a particular CPAP machine, don’t hesitate to contact us at