Cressi Quantum Scuba Dive Mask Snorkeling Accessories 3 are proprietary flat valves

3 are proprietary flat valves are very streamlined and effective

Air or 3 nitrox mixes to 100% O2

Declination scale inside the capsule

Heavy-duty case with steel buttons for resistance to water pressure up to 120 m | 393 ft

easy breathing

Cressi Quantum Scuba Dive Mask Snorkeling Accessories 3 are proprietary flat valvesThe major innovation with the Quantum mask is that as well as offering enhanced downwards vision it avoids the fogging phenomenon through the internal thermoregulation of the warm, damp air exiting the nose. This air is channeled by a system of membranes set in the molding around the eyes and nose and deviating the flow towards the rubber skirt rather than the lenses. The external part of the skirt features a cooling system composed of two small heat