Climateline Oxy tubing -o2 port not working?

[raisedfist]

Is it normal not to be able to hear the flow of oxygen at the mask, at say 4LPM? Using an aircurve 10 st-a for now. If I take out the climateline oxy tubing and use a standard bleed-in adapter and regular hose, I can hear the flow of oxygen in my mask. It's not normal venting noise with either configuration, because my EPAP min is at 4cmh2o and with my simplus or vitera mask it's basically silent when pausing my breath or exhaling. I can't seem to find any leaks or defects in the tubing.

[palerider]

Is it normal not to be able to hear the flow of oxygen at the mask, at say 4LPM? Using an aircurve 10 st-a for now. If I take out the climateline oxy tubing and use a standard bleed-in adapter and regular hose, I can hear the flow of oxygen in my mask. It's not normal venting noise with either configuration, because my EPAP min is at 4cmh2o and with my simplus or vitera mask it's basically silent when pausing my breath or exhaling. I can't seem to find any leaks or defects in the tubing.

If oxygen is flowing (check the flow meter) then it's going somewhere. if it's not leaking out of the tubing, then it's going into the O2 port.