28% Nitrox

[Sas]

28% is not in the PADI dive tables bacause that puts a diver beyond the 130' max depth for a rec diver

Using your logic, why are there air tables then?

 

[krawlings]

Using your logic, why are there air tables then?

This is not mi logic. This is from the PADI Enriched Air Diver manual page 19 (i am speeking of ERA not Air 21%)

 

[String]

28% is not in the PADI dive tables bacause that puts a diver beyond the 130' max depth for a rec diver

No. Its not there as they don't need that many tables. Work it out with EAD. You dont need tables for every single percentage of Oxygen.

PADI for some reason dont want anyone deeper than 40m. The MOD of 29% is shallower than that. The MOD for 28% is near exactly there. Therefore 28% is the best mix for that depth. Its the richest mix you can safely dive to the maximum depth PADI decided people can go to.

 

[RJP]

28% is not in the PADI dive tables bacause that puts a diver beyond the 130' max depth for a rec diver

Huh?

How does breathing a certain mix put you beyond a certain depth?

By that reasoning PADI wouldn't provide AIR tables.

 

[doctormike]

Why do you want to use 28%. What is the dive you want to do with 28% that you do not want to do with 32% or air?

True, but only if you always fill your tanks with a specific dive in mind.

I always keep my tanks filled with 28%. Since the MOD is about my own depth limit as a non-deco diver, and since I don't always know ahead of time if I might be diving on any given weekend or which wreck I will be doing, I get a little extra NDL for whatever dive I do. With 28%, I don't have an issue if we go to a wreck with good diving below the MOD of a richer gas.

 

[String]

Why do you want to use 28%. What is the dive you want to do with 28% that you do not want to do with 32% or air?

Any dive between 33 and 40m where you want to maximise bottom time without overdoing the partial pressures at a rough guess...

 

[redacted]

Any dive between 33 and 40m where you want to maximise bottom time without overdoing the partial pressures at a rough guess...

I'm still planning my dives at 1.6 so 32% is OK for 40m. I keep forgetting that most of the world has moved past that.

 

[chrpai]

It depends on your motivation for diving Nitrox..... Do you want more bottom time, more margin of safety, more certificates, more math...... only each diver can decide that for him/herself. Just find someone with more experience if you don't understand something.

I vote for the cool looking yellow and green tank stickers!

 

[packeteer]

I hate the stickers, but most shops wont fill (nitrox) without them

 

[Sas]

I hate the stickers, but most shops wont fill (nitrox) without them

The wraps? Here you just need a little O2 clean sticker, not the wraps...