Ethereal

They describe the contents of my diving cylinders, so it's only appropriate they should look a bit ethereal. I was struggling for a blip but they were lying around so....

The "Breathing Air" stickers are obvious enough, but the new "Compressed Gas Oxidizing N.O.S." stickers are pretty cryptic. This is the label the British Sub Aqua Club BSAC now encourage us to use for any diving gas other than air, describing it by it's Oxygen, Nitrogen and Helium content. The latter is irrelevant for me as I'm not qualified to dive with "trimix" with Helium in it - so that's a big fat zero.

You used to just get "Nitrox" and "Trimix" stickers, which made much more sense to my little brain...

I'll stop waffling on now.