What is the difference between BiPAP and CPAP ?


Bipap and CPAP are two types of sleep apnea treatments. Both therapy work by using a sleep apnea machine to help the person breathe more easily during sleep. For Cpap therapy a cpap is used and For Bipap therapy a Bipap Machine is used. However, there are some key differences between the Bipap and CPAP and in this article we will be going to discuss these differences.

Difference Between Bipap and CPAP :

There is a lot of talk about the difference between bipap and CPAP. Here are some basics to help you understand the differences:

What is CPAP? 

Cpap means  Continuous Positive Airway Pressure and for CPAP therapy CPAP machines use continuous positive air pressure to keep the airway open during sleep.

What is BiPAP?

BIpap means  Bilevel Positive Airway Pressure and for BiPAP therapy BIpap machines use BIlevel positive air pressure to keep the airway open during sleep.

Bipap machines use two sets of pressure to deliver air to your lungs-one set for inspiration (when you inhale), this Pressure Known as IPAP(Inhale Positive air Pressure) and one set for exhalation (when you exhale), Known as EPAP(Exhale Positive airway pressure). This helps patients breathe more easily. Except pressure, Bipap has multiple Bipap Modes, which make It different from cpap.

*Point to Consider: Both Therapies that are  Bipap and cpap therapy are used for Sleep Apnea.

How do CPAP and BiPAP work?

Since both the Bipap and CPAP machines are used to treat sleep apnea, they are referred to as sleep apnea machines. The BiPAP machine shares many components with the CPAP machine. A face mask and a tube connecting to the device are still required in both. The main difference is between Bipap and CPAP is their work function. In every Bipap mode, you can adjust Bipap pressure.

The BiPAP machine works on bi-level positive airway pressure.  A Bipap Machine raises the Bipap pressure( IPAP) to keep the airways open when the patient inhales while sleeping and during the exhalation process, the Bipap lowers the pressure(this exhale Pressure is EPAP) to allow for a more comfortable breathing pattern. With different pressure Range and different modes, the Bipap therapy provide more comfortable breathing pattern whereas  The CPAP machine works on continuous positive airway pressure that's mean there is same pressure during Inhale and exhale due to this some patient becomes uncomfortable during CPAP machine.

Summary of Difference Between Bipap and CPAP :

Table: difference between Bipap and CPAP machine

Features  that make Bipap and CPAP machine different to each otherBipap machineCPAP Machine
Pressure Type Bipap machine works on BIpap(Bilevel positive air pressure).CPAP(continuous positive airway pressure).
Common Pressure RangeBipap machine has a wide BIPAP Pressure Range. Generally average bipap range in BIpap machines is  4 cm H20 - 25 cm H20, but some Bipap machines also come with 2 cm h20 to 30 cm H20 pressure range.CPAP has a Limited Pressure range. 4 cm H20 - 20 cm H20 is average common pressure range.
Modes Bipap machine comes with multiple modes such as cpap, S, ST, T mode. On the basis of lung's condition, the Doctor recommends these bipap modes.Only cpap mode.
Settings Comes with different multiple settings, since in a bipap machine there are two pressure, so it has 2 pressure setting, one for IPAP i.e. higher pressure setting and second for EPAP i.e. lower pressure setting also come with different setting but for pressure it has only one pressure setting.
Mask And Tubing Both devices(Bipap and cpap) require mask and tubing to use them.It also requires the same mask and tubing to use them.
Price Bipap machines are costlier than CPAP devices because they have advanced features.These are low-Cost device.


Conclusion :

There is a lot of confusion about the differences between bipap and cpap machines. This is because they are both sleep aids, but their mechanisms and uses are quite different.

Bipap machines use a bilevel positive airway pressure (BPAP or Bipap) to keep the individual’s airway open during sleep while The cpap machine a continuous flow of air through a mask or nasal prongs that help to keep the individual’s respiratory system clear. 


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