Difference Between CPAP and BiPAP Machine with Features

The Difference Between CPAP and BiPAP with Features

You've heard the doctor say that you need either a CPAP or BiPAP machine to help you control the obstructive sleep apnea?

You've come to a decision to buy one. But you've got one problem. You don't know which device is perfect for you. You're right.

Information can be overwhelming given the wide variety of choices that exist for you. Sometimes making the right one turns out to be a disaster and a waste of money for something that doesn't truly help you.

In this article, you will spot out major features and difference present in both types of machine. Then, from the information, you will be in a better position to make the right decision. The truth is both CPAP and BiPAP have the same function and design. The trick is knowing which device if perfect for you. Let's start.

What are CPAP and BiPAP machines?

CPAP is the gold standard for treating obstructive apnea. The CPAP delivers a specific set of pressure with a continuous air flow. The air flow is delivered through a mask that you fit on the nose or mouth.

"Bi" stands for two. BiPAP machine delivers a two way set of pressure. Like the CPAP machine, the BiPAP delivers the air flow through a mask that you fit on the nose or mouth. BiPAP delivers both exhale and inhale pressure separately.

Major Difference Between CPAP and BiPAP Machines

CPAP machine is set for a single pressure while BiPAP machine has two pressure settings: The inhale and exhale pressure. In other words, CPAP has one pressure setting while BiPAP has two pressure settings. Both CPAP and BiPAP machine allow you to breathe easily and regularly while you sleep.

When you exhale, the BiPAP machine triggers a set of pressure and when you inhale, the machine delivers a higher pressure and the circle continues.

Most CPAP machines have a ramp feature that allows it to start at lower pressure than the expected. And as you fall asleep this pressure rises slowly to meet the therapeutic pressure.

One similarity with both of these machines is that you'll have to wear a mask that fits the nose or mouth

When to Use a CPAP or BiPAP Machine

If you're diagnosed with obstructive sleep apnea, a sleep technician will carry out a titration study to observe your breathing pattern and habits throughout the night.

It is from this result that the doctor will tell you the best machine to use. However, if you have used a CPAP machine in the past and you've had a difficult time exhaling against the incoming air, then you need to use a BiPAP.

A BiPAP machine is perfect in the following cases:

  • Have a sleep obstructive apnea with high pressure settings or low level of oxygen.
  • When the CPAP machine has totally and completely failed for you.
  • Have cardiopulmonary disorders like congestive heart failure.
  • Have a lung disorder or neuromuscular disorder.

In such extreme cases a BiPAP machine is ideal for you. Getting a titration study gives the doctor an easy time for knowing which machine is best for you.


There is no much difference between these two machines. They all work the same, but the major difference comes in the pressure settings. One gives a single continuous pressure and the other gives two pressure settings.

Try using BiPAP machine if the CPAP machine has failed for you. Both of these devices are life savers.

Not only do you have a regular breathing pattern, but you save your life against future ailments that may come up as a result of obstructive apnea. It is the best solution if you're opposed to taking the surgical approach


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