■ Ceiling Depth
If a decompression stop is required, your dive computer will display a ceiling depth.
The ceiling depth is the shallowest depth to which you may safely ascend.
As you ascend, nitrogen is released from your body more efficiently at shallower depths.
However, ascending above the indicated ceiling depth can cause nitrogen to form bubbles,
which may lead to decompression sickness.
If surface conditions are rough and it is difficult to hold a stop exactly at 3 metres,
you may remain slightly deeper (for example, at 5 metres).
In this case, the computer will continue to display the required decompression time.
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