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noaa oxygen exposure limits

A calculator for the oxygen minute limits for one dive and one day.

Enter the oxygen pressure. Then see how many minutes are allowed for one dive, and the total minutes for a day.

Minute limits

PPO2-nya 1.40. Tabel memakai baris 1.4. Untuk satu selam kamu boleh 150 menit. Untuk sehari, totalnya boleh 180 menit.

What the words mean

NOAA
The oxygen minute limits for a diver who is working. The higher the PPO2, the fewer minutes you may stay.
PPO2
PPO2 stands for partial pressure of oxygen. This table uses rows from 0.6 to 1.6.
Single-dive limit
The maximum minutes for one exposure at that PPO2.
24-hour limit
The total minutes allowed at that PPO2 across the whole day, when several dives are added together.
PPO2 row
The PPO2 is rounded up to the next higher row. 1.35 uses the 1.4 row.
Extra for the day
How many minutes longer the daily limit is than the single-dive limit. On some rows, the two limits are the same.

A planning aid, not a substitute for training or a dive computer.