What is recommended for avoiding overheating in a dry suit?

Releasing air through the exhaust valve when necessary is essential for managing buoyancy and preventing overheating while wearing a dry suit. As divers descend, the suit compresses, reducing the amount of air inside and causing the diver to lose buoyancy. To maintain optimal buoyancy and comfort, divers can add or release air from the suit. By releasing air, divers can adjust the amount of insulation and space within the suit, allowing for temperature regulation.

Diving too deep can exacerbate thermal retention, as the suit's insulation might not be optimal at certain depths without proper buoyancy adjustments. Using multiple thermal layers or an extremely thick suit could potentially trap too much heat, leading to discomfort and overheating. Instead, managing the air inside the suit is an active way to control temperature while maintaining adequate buoyancy throughout the dive.