CPAP/BPAP- What is it?

CPAP (Constant Positive Airway Pressure) is one of the most common treatment for OSA (Obstructive Sleep Apnea)in adults. It is a positive pressure that keeps the upper airway in your throat open which tends to close when you relax and are lying down. The setup consists of a CPAP or BPAP machine hooked to hose and a mask. There are many types of CPAP machines, many hoses (some heated) and 100’s of different masks, Nasal, Mouth and Full Face to name the most common types.

What is the difference between CPAP and (BPAP) ?

The difference between BPAP and CPAP is that BPAP machines have two pressure settings: the higher pressure for inhalation (ipap), and a lower pressure for exhalation (epap). The CPAP machine has one pressure for both inhaling and exhaling.


Now that I know the difference, which one would I use? Some people have problems when using the CPAP machine as it’s constant pressure makes it hard to exhale. In this case you would use the BPAP which utilizes different pressures as described above. Your doctor will decide which is better for you based on your sleep study.

What happens when you lie down to sleep is the muscles in your throat relax and the upper airway closes. In essence, you stop breathing. This forces your brain to wake you up to breathe. Snoring is also a result of this airway closing. I am sure you have woken yourself up at night with a large snort. Yep, Sleep Apnea @ work.


The machine pushes air through your nose and/or throat and keeps the upper airway open so you do not stop breathing. In which case you just avoided an Apnea event.


Regardless what equipment you use, you are still going to have Apnea events, but the number of events will be allot lower compared to what it was before you started the therapy.


One of the things my doctor told that if you get up to go to the bathroom during the night there is a good chance you have sleep apnea. You wake up to breath and immediately your brain tells you to go to the bathroom. If you did not wake up you would not have this problem.


Note:  Any recommendation to purchase CPAP supplies from the suppliers mentioned are strictly MY OPINION and may not work for you.

The content and material on this website is for informational purposes only and not to be a substitute for medical advice, diagnosis, or treatment provided by a qualified physician or other health care provider. Click here to view the full medical disclaimer.


Chip Shapiro

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