Calibro, a low-volume mask, ideal for freediving and underwater fishing that DOES NOT fog up. The special membrane in the nose pocket prevents lens fogging due to moisture from exhalation through the nose. The moist air from exhalation, as it exits through the nose, has a higher temperature and cools down with the special membrane, then disperses inside the mask. Additionally, this membrane reduces the internal volume of the mask. It has a hydrodynamic shape and provides wide field of vision due to the angle of inclination of the frame.

Before the first use of the mask, we should apply white toothpaste (not gel) internally on the lenses and the silicone of the mask. Typically, this toothpaste contains particles that assist in cleaning. The pressure we apply should be gentle to avoid leaving marks on the lenses. We let the toothpaste sit for at least 2 hours, and then we thoroughly rinse the lenses and the interior of the mask with lukewarm water. Ideally, before each use of the mask, we use an anti-fog solution.