Same way you do if you don't use O2. Just be careful where the hose goes: you don't want it to burn or develop a hole. Many people run the hose down their back instead of their front to keep it out of the way. You can cook with gas, just watch where the hose is.

Using an electric stove/oven is ideal. However, I have a gas stove and am unable to afford an electric one. So, I make sure I use the back burners, my oxygen tubing is behind my back. I do have the cannula in my nose but the least amount of tubing being exposed. I try to be extremely careful. I have no idea what the medical community has to say about this. Be well...........

Yes I use my electric and of course my toaster oven.

The wife cooks on the stove, i use a toaster oven or the microwave.

Electric stove. Don't like it, prefer gas, but no choice.