CPAP Machine: What Kind of Hose Should I Get?

 In Masks, Machines, & Cleaners, Troubleshooting / CPAP Care

What is a CPAP hose/tubing?

A CPAP hose, also referred to as the tubing, is what delivers airflow that is used to connect…

A. Machine to mask (4, 6, 8, or 10 ft.)

B. Humidifier to mask (4, 6, 8, or 10 ft.)

C. Machine to humidifier (18 or 24 in.)

Pro Tip: Light hoses, such as the Heated Tube for DreamStation CPAP Machines or the ClimateLineAir Heated Tube for AirSense 10 & AirCurve 10 Machines (both weigh 0.03 lb), tend to be more flexible and doesn’t tug on the mask as much.

The internal diameter of the hose (15mm or 19mm) affects the amount of prescribed air pressure. The 15mm slim hoses are compatible with only a select range of machines.

Types of Hose: Heated vs. Unheated

Unheated: Also known as standard or performance tubing and has a smooth inside.

Heated: Contains copper coils that conduct heat.


May be used with different types of machines. A hose with rubber ends won’t make a lot of noise.


Does not help reduce rainout.


Rainout, which is condensation formed in the hose, can be minimized with the use of heated tube. Can also alleviate dryness, congestion, sore throat, etc. caused from CPAP therapy.

Most of heated hoses are tailored to certain machines.


Should You Get a Heated Hose?

Well, if you experience dryness, congestion, and sore throat from CPAP therapy, then heated hoses, along with humidifiers, can be helpful. If you have a heated humidifier but no heated tubing, then the effect is minimized because the standard tubing will often be colder than the air that passes through it, causing the air to be less warm. The difference in temperature of the unheated tubing and the heated air is what causes excess condensation, which leads to rainout. Rainout is uncomfortable for the user because it’ll wet the bed and splash water onto the user’s face…

Extra Tips + Reminders:

  • A tube wrap/cover improves the effect of a heated tubing because of insulation!
  • A tube management clip helps secure the hose in place and keeps the mask sealed.
  • Make sure to regularly clean hoses too. Use warm water and mild soap to clean the hose, then let it completely air dry. If properly cared for, hoses can last up to a year; however, if it ever gets damaged, replace it immediately.
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