month to six weeks I don't know if it's my skin but after 2 to 3 weeks mine have gone hard and will not hook over my ears properly
I have been on oxygen 19 hours a day ... - Lung Conditions C...
I have been on oxygen 19 hours a day for the last three months. When my machine was delivered the enginer said the cannula would last a
Hello beld, you could phone up your supplier and they will bring you more or you can order some on line....
you can buy them on Amazon , they have them at quite a reasonable price, take care, huff xxx
Thank you for your reply I feel much better about things now. I had rung up and they had sent replacement cannulas out to me with out any questions but I felt guilty as if I was wasteing them.
I had looked on the net but no one sold the ones I needed
I have the same problem and change the cannula every 3 weeks. The oxygen flow hardens the material and makes it much less flexible. I just ring them for more as I need them and no one has ever questioned how many I use.
Thank you for your reply I feel much better about things now. I had rung up and they had sent replacement cannulas out to me with out any questions but I felt guilty as if I was wasteing them

Maybe that's the intention? If we feel guilty we change them less often and they save money? Perish the thought!