Private Boat - Emergency O2

[tursiops]

For a recreational diver going on their own or buddy's boat, something like this might be good to have as an all-in-one emergency backup:

Rapid Oxygen R15 Emergency Oxygen Delivery System ROR15

The RAPID OXYGEN: R15 Emergency Oxygen Delivery System is a revolutionary delivery system providing 100% humidified oxygen to victims in emergencies who are having trouble breathing and require 911 assistance. Unlike oxygen cylinders (compr

mdmaxx.com

6 liters/min is an insufficient flow rate for DCS treatment.
15 mins duration is an insufficient endurance for off-shore use.

 

[ecp]

Isn't 100% O2 toxic at 6m (18ft)? And its hanging at 20'?

 

[tursiops]

Isn't 100% O2 toxic at 6m (18ft)?

No. Why do you think that?

 

[Wibble]

Isn't 100% O2 toxic at 6m (18ft)? And its hanging at 20'?

A lot of people deco out on 100% at 6m.

The PPO2 is: Pressure X Mix = 1.6ATA x 1.00 = 1.6ATA.

 

[Fishhy]

6 liters/min is an insufficient flow rate for DCS treatment.
15 mins duration is an insufficient endurance for off-shore use.

I agree, looking more of a crutch to get you ashore- like tbone said, probably better to just invest in a dedicated bottle, but the best one is going to be the one you actually have available and take with you.

 

[tursiops]

I agree, looking more of a crutch to get you ashore- like tbone said, probably better to just invest in a dedicated bottle, but the best one is going to be the one you actually have available and take with you.

Understood, but if someone hands me a crutch, I'd like it to be long enough to reach the ground.

 

[rhwestfall]

This and a DAN kit....

 

[ecp]

No. Why do you think that?

PPO2 of 1.6 (considered the high end) / 1 = 1.6 (as @Wibble points out). 1.6-1=0.6 X 33fsw=19.8fsw (~6m).

Looking at DAN - Oxygen Toxicity - Divers Alert Network Seems like resting w/100% O2 is ok although borderline.

"Breathing 100 percent oxygen during a decompression stop at 20 feet (6.1 meters) is a common practice. At this depth, the partial pressure will be about 1.6 ATA. Under resting conditions at that depth, the chance of CNS oxygen toxicity should be very low but is not absent."

"Levels of 1.5 to 1.6 ATA should be only for conditions where you are entirely at rest, such as during decompression. The dive team must still prepare for the possibility of an oxygen convulsion at these levels"

So I was thinking of "active" diving vs just rest. I learned something new today.

 

[tursiops]

PPO2 of 1.6 (considered the high end) / 1 = 1.6 (as @Wibble points out). 1.6-1=0.6 X 33fsw=19.8fsw (~6m).

Looking at DAN - Oxygen Toxicity - Divers Alert Network Seems like resting w/100% O2 is ok although borderline.

"Breathing 100 percent oxygen during a decompression stop at 20 feet (6.1 meters) is a common practice. At this depth, the partial pressure will be about 1.6 ATA. Under resting conditions at that depth, the chance of CNS oxygen toxicity should be very low but is not absent."

"Levels of 1.5 to 1.6 ATA should be only for conditions where you are entirely at rest, such as during decompression. The dive team must still prepare for the possibility of an oxygen convulsion at these levels"

So I was thinking of "active" diving vs just rest. I learned something new today.

PPO2<1.4 is very unlikely to cause any O2 toxicity; PPO2>1.6 -- given sufficient time, measured probably in minutes, not seconds -- is likely to cause O2 toxicity. That range from 1.4 to 1.6 (111 to 132 ft for 32%) is a contingency zone. Best to stay out of it without good reason and training.

 

[wetb4igetinthewater]

View attachment 716442

This and a DAN kit....

Wherever did you get this? I have an "adapter" that attaches to a low-pressure hose (I will post a pic later tonight). I like this more. When I have my own dive boat, I'd like a big arsed cylinder with one of these to provide O2. I already have the two-cylinder DAN kit.