Here is a question posted to Facebook. Anyone have ideas?

I need help. My cat keeps chewing my oxygen tubing.....the bitter sprays and such do not work.....I need help in finding something which will deter him from doing this ......it happens often.....his vet is not helpful. I got my cat due to depression from having COPD and emphysema for 18 yrs causing depression. He is only two years old and helps my depression but I also need to breathe. Someone needs to invent something for my problem for after googling this subject many people share my problem with no solutions that last long.