Q : Is this a heated tube?
A : Yes, specifically for the ResMed S9 machines.
Q : Does this ClimateLine heated tube also fit the ResMed AirSense S10?
A : No, the tube for the AirSense 10 is product number 37296
Q : How can I be check to make sure my ResMed ClimateLine tube is still heating?
A : Run the machine with the humidifier turned up.