Build a dry CO2 table from your current static PB.
Fixed breath-holds, shorter recoveries, conservative defaults, and copyable rounds for dry static apnea practice.
Generator
Enter your current dry static personal best. The hold is set to 50% of PB and recovery decreases across the table.
Fixed-hold rounds
| Round | Prep | Hold | Rest | Total |
|---|
CO2 table safety rules
- Train dry, seated or lying down, away from water and hazards.
- Do not hyperventilate. Use calm, normal breathing before each hold.
- Stop on dizziness, visual stars, tingling, confusion, chest pain, or unusual discomfort.
- Do not turn the last round into a max attempt. This table is training, not testing.
What a CO2 table does
A CO2 table is usually built around one repeatable hold time. The pressure comes from shorter recovery, not from making every hold longer. That makes it useful for practicing calm discomfort, clean starts, and recovery discipline during dry static apnea training.
The goal is not to prove toughness. A useful CO2 table should feel controlled enough that you can finish the round, recover calmly, and still stop early if the session changes. If a recovery feels rushed, sharp, or messy, the table is too aggressive for that day.
How the generator works
Enter your current confirmed dry static PB, choose the number of rounds, select the breathe-up time before round 1, and choose a difficulty. The generator sets the hold to about half of your PB, rounds it to a 15-second step, then decreases recovery across the table.
Foundation keeps recovery more generous. Standard is the default. Advanced shortens the final recoveries more, so it should only be used when the standard table is repeatable. The first row shows the breathe-up before round 1; later rows focus on the hold and rest pattern.
Example CO2 table output
With the default 2:30 dry static PB, 8 rounds, 2:30 breathe-up, and Standard difficulty, the generator creates fixed 1:15 holds. Recovery starts at 2:30 and steps down toward 0:45, with each round shown in a copyable format.
Use the example as a structure, not a prescription. If your current PB is old, inflated, or from a high-effort test, reduce the difficulty or lower the number you enter. Conservative input gives you a table you are more likely to repeat cleanly.
When to use it
Use a CO2 table when you want a dry session that practices steady holds with gradually tighter recovery. It fits days when you want structure but do not want a max attempt.
When to back off
Back off if you slept badly, feel ill, have unusual stress, or notice symptoms before the hold begins. A reduced table is better than forcing a bad session.
How to progress
Repeat a manageable table before shortening recovery. Progress should look like cleaner rounds, calmer recovery, and fewer rushed decisions.
CO2 table generator FAQ
What is a CO2 table?
A CO2 table is a dry breath-hold training pattern that usually keeps the hold time steady while recovery gets shorter round by round.
How does this CO2 table generator calculate holds?
This generator takes your current dry static personal best, sets the hold to about 50% of that time, rounds to 15-second steps, and shortens recovery based on the selected difficulty.
Should I use this table in water?
No. Use this table only for dry practice while seated or lying down, away from water and any hazard where fainting could cause harm.
How hard should a CO2 table feel?
A CO2 table should feel controlled and repeatable, not like a max attempt; stop early if symptoms, panic, or unusual discomfort appear.
How often should I train CO2 tables?
Most beginners should leave recovery days between CO2 sessions and repeat manageable tables before making the recoveries shorter.
Can I copy this CO2 table into my training notes?
Yes. Use the copy button to move the rounds into notes or a training plan, then review the session and keep dry practice conservative.
Related dry apnea tools
Compare this with the O2 table generator, check changes with the progress calculator, record sessions with the static apnea log template, or run a simple session in the static apnea timer. For the larger context, read the CO2/O2 table guide or the apnea table app page.
Want the full guided session?
Static adds guided phases, cues, local progress, and more conservative session structure on iPhone and iPad.