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What’s in a CPAP Hose?

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A CPAP hose or tube might seem like a simple thing. But, hoses are becoming more detailed as advancements in comfort features and technology are made in CPAP therapy.

A CPAP hose is the tube used to deliver airflow from point A to point B. It can be used to connect:

1) A machine or humidifier to a mask

Length: 4, 6, 8, or 10 foot

Standard/Performance Hose Heated Hose
Standard / PerformanceHeated
A non-heated hose is smooth on the inside. It may be used with several types of machines. Tip: Try this quiet, 6 Foot Hose with Rubber Ends. It will hardly make any noise as you move. A heated hose contains copper coils that conduct heat. Most are specific to a machine. Also available is the ComfortLine Heated Tubing Kit– a stand alone option that fits most machines which use a standard hose.
Conventional Humidification

Tip: As air in your hose cools, moisture is released and condensation occurs. Rainout, or the accumulation of water inside your hose, can be reduced with the help of a heated hose.

2) A machine to a humidifier
Machine to Humidifier Hose

Length: 18 or 24 inches

This hose connects a machine to a stand alone humidifier. Learn more about humidification.

3) A mask to a longer hoseA mask to a longer hose

Length: 18 inches

Lightweight hoses – like the SleepWeaver Feather Weight Tube – are more flexible and pull less on the mask.


The internal diameter of a hose impacts the delivery of the prescribed pressure. The internal diameter for standard hoses measures 19mm versus 15mm for thin or slim style hoses. Slim hoses are only compatible with select machines, so please verify that your machine has a 15mm, Thin or SlimLine™ setting. Click here to view all thin hoses.

The hose cuff is the end part which connects to the machine, humidifier, or mask. A hose can have rubber ends (soft) or stability ends (hard). All hoses have a 22mm connection cuff and fit on all CPAP masks.

Built-in Oxygen ConnectorAdd-on Oxygen Connector

Tip: Most hoses have a single cuff or connector. But, you can add supplemental oxygen to the air stream of your CPAP machine.You can use ResMed’s hose with a built-in supplemental oxygen connector with your S9 series or AirSense™ 10 and AirCurve™ 10 ResMed machines. Or you can use the Oxygen Enrichment Adapter which is compatible with all hoses.


There are several tools you can use to keep your hose bacteria free. You should aim at washing your hose each morning with warm water and mild soap or shampoo, and allow hose to air dry.

Tube Cleaning SystemHurricane CPAP Equipment DryerThe CPAP Tube<br data-lazy-src=Hurricane CPAP Equipment DryerThe CPAP Tube
Brush Second Gen

A hose can last up to a year if it has been cleaned properly. Replace the hose if cracked, punctured, or torn; look for mold or mineral deposits inside the hose. Also, over time soft cuffs can become stretched out and easily fall off a machine or mask.

Hose Management

Avoid getting tangled up in your hose by using a suspension system or placing it behind the headboard.

CozyHoze BOSS Hose Management SystemCPAP Hose Lift System for Travel and HomeTube Management Clip
CozyHoze BOSS Hose Management SystemCPAP Hose Lift System for Travel and HomeTube Management Clip

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Email us at CPAP@CPAP.com or call 1.800.356.5221 between 8 AM – 8 PM CST Monday through Friday or 8 AM – 5 PM CST Saturday and Sunday.

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10 Responses

  1. Do i need a prescription from my DR. I am on Medicare, this is new tom how Medicare does things!!!

    1. Shirley,

      You do need a prescription from your doctor to purchase CPAP machines, masks, and humidifiers; but, you do NOT need one for a CPAP hose and all other accessories. Please call 1.800.356.5221 so one of our CPAP Experts can help you choose the items you need.

  2. I am an Australian CPAP user. I have a letter dated August 2012 by which my doctor records that I have been a CPAP user for 10 years and that it is appropriate that I update my equipment.

    Would this permit you to send me a new mask? I understand that hose and filters are OK but what about the mask. I have a Philips system one machine. What hose diameter do I need?


  3. The Z1 machine shows a hose that humidfies the air using your breath so an additional humidifier unit is not necessary. Can that hose be purchased to use on say a Transcend Mini?

  4. Seems crazy to need a prescription from your doctor for a C-PAP mask. Who on earth would want to buy one if they didn’t need it? A lot of us would have much healthier equipment if it wasn’t such a hassle to obtain it! Just saying…

    1. Deb,

      We understand how inconvenient it can be. However, the Food and Drug Administration classifies masks and humidifiers along with machines as Class II Medical Devices, which require a prescription. Please call 1-800-356-5221 so we can help you with your CPAP mask.

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