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Inhale first and exhale second. Since you are removing thea volume of air no problem. It will only matter as you rise to the surface and the air in your lungs expand. That could be a problem.
Inhale first and exhale second. Since you are removing the volume of air no problem. It will only matter as you rise to the surface and the air in your lungs expand. That could be a problem.
Inhale first and exhale second. Since you are removing a volume of air no problem. It will only matter as you rise to the surface and the air in your lungs expand. That could be a problem.
Inhale first and exhale second. Since you are removing the volume of air no problem. It will only matter as you rise to the surface and the air in your lungs expand. That could be a problem.
