The Smaco Diving Mask Snorkeling Full Face Snorkel Masks Underwater Swimming Mask Scuba Diving Equipment Full Face Dive Masks comes with some important reminders. For the best performing black swimming mask, use it with a Smaco S400 series scuba tank or S700 scuba tank. The full-face diving mask's main body is optimized with EPDM (Ethylene Propylene Diene Monomer). This material provides superior aging resistance, sunlight resistance, water resistance, and UV resistance. Not only does it extend the mask's lifespan, but it also offers reliable safety for divers in cold and contaminated waters. Additionally, the Smaco M8058 mask can dive to a maximum depth of 50M compared to the M8038's 3 meter limit. Whether for snorkeling, recreational diving, commercial diving, or technical diving, the SMACO M8058 is a versatile option for divers. To maintain safety, it is recommended to stay at a depth no greater than
