When would you use Nitrox?

[tpscuba]

I have a Nitrox capable computer, but when do you need to use it? Can you use it all the time or just on deeper dives?<br><br> :o

<br>Nitrox does extend bottom time,but on shallow dives(those under 40 ft.) you'll use up your air before your time. I find it usefull on dive vacation where you are doing multiple dives over multiple days, I don't seem to feel as runned down as I do on air. As far as depth it depends on the percent of the mix. <br>Having a clean reg for nitrox is wise espicially if you are running 40 % or higher.