NEVER use a petroleum based product for oxygen !!!!! I use Ayr over the counter, it is water based as you have already read. I also have a cool mist humidifier that is always on . Before the humidifier I had to use Ocean saline nasal spray to loosen the nasal clog. The only time humidifier bottles work on your machine is if the liter flow is at 3.5 to 4 liters per minute, as the air pressure isn't high enough to turn the drops into a mist and sometimes you feel like you ae drowning. To travel you can usually rent an FAA approved machine from your oxygen company. As for the shower, just use it as usual. Hope this helps. Have a Breathe Easy day....

I am a retired RN and the reason you should not use petroleum based products with oxygen isn’t because the oxygen is explosive it’s because static electricity can cause the product to catch fire. I took care of a man who put Vaseline in his nose, got up from his chair and when he sat back down his wife reached up to adjust his cannula a spark hit the Vaseline and flames went up the mans nose severely burning his nasal passages. It was not pretty. That’s why petroleum based products should never be used. Unfortunately that includes Vick’s and products like that

Aquaphor is approved for use with oxygen. Similar to vaseline but you will not get inhalation pneumonia from using it. Quite pricey but deemed safe by doctors.

TexasGal 💖

Ayr Nasal Gel is the best thing I’ve found. Works great and you can use as much and as often as needed. When I was working customer service, I used it during the winter, but didn’t need it the rest of the year. It’s less than $5 here. Good luck!

I just use Vick vapour rub it works a treat and clears your nose at the same time.