O2 clean gear and nitrox

[Packhorse]

Do you need O2 clean gear to use up to 40% nitrox?
I know you need O2 clean tanks for partial pressure blending. But what about the regs?
Do these really need to be o2 cleaned?

 

[venturediver]

Regs dont need to be O2 cleaned, but you do need to make sure that they are nitrox compatible. Certain regs, such as titanium first stages are not recommended for certain percentages of oxygen enriched air. As far as the other gear, your tank needs to be O2 cleaned, and you need to make sure that your tank valve is nitrox compatible with the proper type of O-ring.

 

[BarryNL]

If you have a fill station which supplies pre-mixed nitrox (either stick or membrane) you don't even need the tank cleaned for mixes under 40%. Just put a nitrox sticker on it so no-one uses it by accident thinking its air and you're ready.

 

[divingjd]

Regs only need to be O2 cleaned for blends richer than 40%.