Longer Breath Holding - NorCal Dive

Here’s an example of a CO2 static apnea table:

Round 1 Hold 1:00 Breathe 1:30
Round 2 Hold 1:00 Breathe 1:15
Round 3 Hold 1:00 Breathe 1:00
Round 4 Hold 1:00 Breathe 0:45
Round 5 Hold 1:00 Breathe 0:30
Round 6 Hold 1:00 Breathe 0:15

Here’s an example of an O2 table:

Round 1 Hold 1:00 Breathe 2:00
Round 2 Hold 1:15 Breathe 2:00
Round 3 Hold 1:30 Breathe 2:00
Round 4 Hold 1:45 Breathe 2:00
Round 5 Hold 2:00 Breathe 2:00
Round 6 Hold 2:15 Breathe 2:00