Sefam: S.Box Auto Heated Humidifier

For many CPAP users, humidified air is an essential part of their therapy. The Sefam S.Box Auto Heated Humidifier allow current and prospective owners of a Sefam S.Box Auto CPAP Machine to benefit from the comfort of humidification. The Sefam S.Box Auto Heated Humidifier provides all of the comforts you come to expect from humidifying the air from your CPAP machine, but with some additional technological improvements to make it more effective and user-friendly.

Humid Control + – Enables humidification without condensation

Adaptive Thermo Control – Automatically adapts the heating of the heated tube to match the heated humidifier.

Please note this humidifier is compatible with the Sefam S.Box Auto CPAP Machine.

This product is eligible for VAT relief

VAT on this product will be charged at 0% if VAT relief is claimed at the final stage of the checkout process. Please be aware VAT will show at 20% until that point. Full details can be found here and at the checkout.

£149.00with VAT Relief
£178.80without VAT Relief


The Sefam S.Box concept

Sefam’s S.Box is a step forward in CPAP technology, combining stylish modern design with unrivalled connectivity. It also features an array of comfort features to make sleeping with CPAP easier and more natural than ever before.

The S.Box is an automatic CPAP machine, and so will provide you with the appropriate amount of pressure at all times. When you’re not experiencing Sleep Apnoea, the pressure will be nice and low – only increasing when you’re at risk of having your sleep interrupted to fend off any potential blockages.

These comfort features include:

iRamp – keeping the pressure low while you fall asleep, and only increasing it once you have nodded off. This allows you to fall asleep comfortably, without distraction from pressure changes.

Intelligent Start – the S.Box will begin providing pressure when you put your mask on, without having to press a button. The machine can detect your breathing and starts up immediately.

Mask Select and Circuit Select – the S.Box can automatically detect what type of mask and tubing you are using, and will adjust the pressure provided accordingly. There’s no need to specify either of these in the settings, so you can rest assured knowing you’re getting the appropriate therapy regardless of your mask or tubing preference.

Mask Fit & Go – Easily check the mask fit for any leakage issues.

CC+ mode – three optional levels of exhalation relief, which means the pressure is reduced when you breathe out, making it easier and more comfortable to exhale.

Wave & Go – Activates the display simply by waving your hand in front of the display – no fumbling in the dark for the right button.

The Sefam S.Box Auto Heated Humidifier allow current and prospective owners of a Sefam S.Box Auto CPAP Machine to benefit from the comfort of humidification.

Humid Control + – Enables humidification without condensation

Adaptive Thermo Control – Automatically adapts the heating of the heated tube to match the heated humidifier.

Please note this humidifier is compatible with the Sefam S.Box Auto CPAP Machine.

This industry-leading technology is packaged in a sleek, modern black design that was created in partnership with award-winning design agency Starck. The aim was to move CPAP beyond being an unsightly medical device in your bedside table, to one that takes pride of place beside you. Starck said this about the S-Box design:

“Our goal is to ennoble this medical device, to make it a product of which we would not be ashamed, of which we could almost be proud, that would not be anxiety on a daily basis. We have created a product at a minimum, timeless and which finally only the elegance of its intelligence and its high technology. It is, therefore, a great honour for me to work on this project, on this product, which may well improve the quality of our lives”.

SEFAM Access keeps you connected and informed

The SEFAM Access mobile app is a free app that allows you to monitor your therapy.

Simply connect your S-Box to your smart device by Bluetooth, and you can immediately see how your therapy is going. It can highlight any potential issues, and provide reassurance that your Sleep Apnoea has been brought under control.

Who is SEFAM?

SEFAM are a long-established manufacturer of CPAP devices, with nearly 40 years of experience behind them. They produced Europe’s first-ever CPAP machine back in 1984, and since then their machines have pioneered several developments in CPAP technology that have subsequently become standard across the industry.

The S-Box’s focus on patient comfort and control is set to raise the bar for CPAP design and innovation once again.

Sefam S.Box Brochure

Additional information


0.62 kg

Humidifier Dimensions

23 x 12.5 x 11.5 cm

Weight (machine only)

1.4 kg

Also Known As

Heated Humidifer





Fits Any CPAP Machine


Humidification Options

Adaptive Thermo Control, Humid Control

Made In


CPAP Humidifier – Everything You Need To Know
Everything you need to know about humidification

CPAP Heated Humidifier houses a water chamber, which it heats to add moisture to the air provided by your machine. They are ideal for those who find the device leaves them waking with a dry mouthsore nasal passages or find the air cold and therefore uncomfortable.

They are usually an additional piece of equipment that locks onto or into your main CPAP machine, but some CPAP machines come with a humidifier built-in. Most CPAP machines will have their specific humidifier available.

For some people, having a humidifier moisten and warm the air from their CPAP machine is an essential part of their therapy; for others, there is a little benefit so it can come down to personal preference. Those using a full face mask are more likely to require humidified air as they are more susceptible to a dry mouth. For those using an oral mask, humidified air is more or less essential.


I’m not sure I need a humidifier?

For most CPAP machines, humidifiers can be purchased at a later date and integrated separately, so you can order your CPAP machine without the humidifier and see how you go. However, if you do find yourself already waking up with a dry mouth before you’ve started CPAP therapy and are new to CPAP therapy, then CPAP is likely to make this condition worse, and we would recommend purchasing one immediately.

If you know you need a humidifier, then it could be worth considering a machine with a humidifier built-in. An example of this is the Fisher and Paykel ICON. This design adds greater convenience, and they’re often more compact than having two separate units (space on your bedside table).

Intus healthcare advice:

  • CPAP machines with built-in humidifiers can be delicate and require extra care in transit. Therefore it is advised the humidifier is entirely free of water – and preferably packed separately if you are travelling with your CPAP machine.
  • If you are running your CPAP machine from a 12V source (for example in a car or caravan), then your humidifier will not be able to run off of DC power. It can still be used passively (unpowered and unheated).
  • Overall, if you will be travelling, we would always advise you to leave the humidifier behind unless it is essential or you are away for an extended period.
  • If you are going to be travelling, we would recommend purchasing a CPAP machine that has a separate humidifier rather than one that is built-in.


Problems with humidified air from your CPAP humidifier

A possible drawback of humidified air is from, what we call Rainout, the proper name for condensation build up in the tubing and mask. It is likely to happen because the tubing and CPAP mask will be at room temperature (20–22 °C (68–72 °F)), causing the warmer air from the CPAP machine to cool and condense as a result. Rainout can result in a gargling noise or just general discomfort; it is particularly common in the winter months.


There are ways to counteract Rainout (condensation buildup)

One solution we offer is a hose fleece, which provides the CPAP machine’s hose with insulation (it can also make the tubing physically more comfortable to touch).

Our second and more comprehensive option is to use a heated CPAP hose, such as the Hybernite Heated Breathing Tube. The heated hose ensures the temperature difference inside the tubing is negligible, preventing Rainout and ensuring the air reaches you at the correct temperature.

What does a CPAP Humidifier do?
CPAP humidifier water chamber
Water chamber for CPAP humidifier – DeVilbiss Sleep Cude

If you find yourself waking up with a dry mouth, nose or throat, then a humidifier should instantly solve that problem and others. By adding moisture to the air provided by your CPAP machine, it helps to keep your mouth from drying out throughout the night. Similarly, if you find the air from your CPAP to be cold and uncomfortable, a humidifier adds warmth to the moist air, and this should make your therapy more comfortable.

It is clinically proven, through several studies, that humidification improves compliance and helps CPAP and BiPAP users avoid suffering from a dry nose, mouth and throat. A humidifier can be extremely beneficial for those who are often visiting countries with drier climates. Still, even in the UK and colder parts of Europe, CPAP users report significant benefits from a humidifier added to their setup.

For sufferers who are mouth breathers who need a full-face or oral mask, heated humidification is a must-have feature.

If you do breathe through your mouth, you probably will need a full mask, and this increases the chance you will need a humidifier.

When you breathe through your nose, the hairs in the nasal airway conditioning the air with heat and humidity before it enters the lungs.

When you breathe through your mouth, this process is not present and can lead to uncomfortable dryness. One other note is that allergies and illness can make the effects worse.

Intus healthcare advice:

All though we do believe that humidifiers can improve the comfort of the CPAP therapy for suffers, we would advise that if you’re new to CPAP therapy, you should try your mask and machine before you purchase a humidifier.