How do I know if a freediving mask fits properly?

Place the mask against your face without using the strap and inhale gently through your nose. If the mask stays in place without falling off, the seal is good. It should sit comfortably without pressing hard on your nose bridge or forehead. Everyone’s face shape is different, so trying several masks is the best approach.

Why do freedivers use low-volume masks?

As you descend, water pressure compresses the air inside your mask. You need to equalise this by exhaling a small amount of air through your nose. A lower-volume mask requires less air to equalise, leaving more oxygen in your lungs for the dive. This becomes increasingly important at greater depths.

Can I use my scuba mask for freediving?

You can, but scuba masks tend to have larger internal volumes, which means you will use more air equalising the mask during descent. A dedicated freediving mask with lower volume will be more efficient and comfortable, especially as you dive deeper.