Frequently Asked Questions about CPAP

Having helped thousands of customers get the CPAP equipment they need over the years, we decided to put together the most common questions we get asked to help those unsure about anything CPAP related get the information they need. If the answers you want are not found here or elsewhere in the Help & Advice section, then do get in touch and we will be happy to advise you directly!


  1. What is a "full kit"?
  2. Why do you not include a mask with the CPAP mask with your machines?
  3. Do I need a humidifier?
  4. How noisy are the machines?
  5. What is exhalation relief?
  6. What happens if the machine breaks?
  7. Which machine do you recommend?
  8. What servicing do CPAP machines require?
  9. How long does delivery take?
  10. What is a ramp or delay priod, and what level do I set my machine at?
  11. My question is not answered here...


Q) What is a “full kit?”

A) Essentially all you need for CPAP therapy is a machine and a mask; everything else is optional. All of the CPAP machines we supply come complete with a power supply, a carry bag and a 6 foot tube. The only thing you need to add is a CPAP mask, you browse our range here.
Return to top


Q) Why do you not include a CPAP mask with your machines?

A) Masks are a very personal choice; what works for one person may not for another. For this reason, we see little benefit in throwing in a generic mask which for a large percentage of people would not be ideal. We therefore leave it to the customer to decide which mask is best for them – and remember that all masks and machines are cross-compatible. You can browse our range of masks here, and you can read our guide on How to Choose a CPAP Mask here.
Return to top


Q) Do I need a humidifier?

A) Humidification is an optional addition to CPAP therapy; for some it has little to no benefit, for others it is essential. For a full explanation of what humidification is and does, and who specifically it benefits, you can read our Guide to Humidification here.
Return to top


Q) How noisy are the machines?

A) The modern machines are well insulated with efficient fans, but an element of noise will always be apparent due to the nature of what these machines do; blowing air. However all of our machines are recorded to produce fewer than 30 decibels of noise, which for many is not an issue at all. Bed partners usually find them to a blessing in comparison to the snoring that they prevent! It is also worth noting that the noise is “white noise”, i.e. consistent and therefore becomes ignored by the brain after a short period of time.
Return to top


Q) What is exhalation relief?

A) Exhalation relief is a feature found on certain CPAP machines, such as the System One REMstar and SleepCube machine ranges. It simply lowers the pressure being provided during exhalation; so that you are not pushing against the pressure to the same extent as you try to breathe out. Many find this makes the therapy more comfortable as a result, and is particularly beneficial for those who require high levels of pressure for their condition. All machines that have this feature can have it disabled if preferred however.
Return to top


Q) What happens if the machine breaks?

A) In the unlikely event of a problem occurring with your machine within the warranty period (length dependant on machine, but typically two years) then please use the Contact Us page to send us an email. We always deal with problems quickly and efficiently, as we know how important these machines are. We will liaise with the manufacturers as to what the best solution is and get it resolved as quickly as we can. If the warranty period has elapsed, then please contact the manufacturer directly. These machines are highly refined however, and the failure rate is incredibly low across all of the ranges as a result.
Return to top


Q) Which machine do you recommend?

A) There is no one machine that suits everybody, so we recommend reading about a few to make a decision. We put as many images and as in-depth information on our site as possible to ensure you make the right choice, and allow others to post reviews to help others decide too. We also have our CPAP Machine Help & Advice section to explain what to look for. Still unsure? Use the Contact Us page to get in touch and we can point you in the right direction!
Return to top


Q) What servicing do CPAP machines require?

A) In short, none. The only maintenance CPAP machines require are new filters on a regular basis; the exact timescale of when these should be changed will be outlined in your manual. It is very important to do this; filters can become clogged and ineffective over time, and can even begin to disintegrate if left for excessive lengths of time. So always keep a good supply of spare filters and ensure you change yours regularly as outlined in the manual. You can find filters here.
Return to top


Q) How long does delivery take?

A) Once everything is in place, most orders are shipped with 24 hours. Dependant on exactly what equipment you choose this time may be a day or two longer, so please contact us if you are on a tight time frame and we will see what we can do. However we are aware that customers are invariably in a hurry for this equipment as they simply cannot sleep without it, so with that in mind we always try and ship every order as a matter of urgency.
Return to top


Q) What is a ramp or delay period, and what level do I set my machine at?

A) A ramp or delay period is a comfort feature found on almost all CPAP machines, and the exact functionality depends on whether the machine is an automatic machine or a fixed-pressure one. Some people find the pressure provided by a CPAP makes it difficult for them to fall asleep. On a fixed-pressure machine, for example, the prescribed pressure may be 12cmH2O. A ramp can be set for 20 minutes, at 4cmH2O. What this means is that when you start the machine up, it will then start at 4cmH2O, and gradually increase bit-by-bit to 12cmH2O over the first 20 minutes, allowing the user to fall asleep with a lower pressure while it increases. Unlike the prescribed pressure, which case to be authorised by a doctor or physician, the ramp pressure and time are both entirely down to personal preference, and any setting can be chosen to suit. A machine can also be set with no ramp if preferred, and can be disabled or adjusted at any time - so do not worry if you do not get the settings perfect first time!

Automatic machines work differently as they are constantly adjusting the pressure provided based on exactly what you need at any given time, so the ramp works slightly differently with them. Instead, the delay period is how long the machine is held at the lower pressure setting before it starts to fluctuate. So for example, a delay period of 20 minutes on an automatic set between 4cmH2O and 20cmH2O would see the machine provide 4cmH2O for the first 20 minutes after being switched on. Once 20 minutes has passed, it would then start increasing and decreasing between the pressure limits as normal. Again this can be adjusted or disabled as required so you are not committed to whichever setting you choose permanently.
Return to top


Have a question that is not answered here? Us the Contact Us page to ask us whatever you need to know about CPAP!