The DIDEEP 0.5L Oxygen Cylinder is designed for effortless and lightweight underwater exploration. Perfect for beginners, snorkelers, and shallow divers, this compact tank allows you to enjoy 5-12 minutes of breathable air at depths ranging from 1-10 meters (depending on lung capacity and diving depth). Whether you're capturing marine life, practicing underwater skills, or simply enjoying the freedom of movement, this mini oxygen cylinder is the ideal companion for your aquatic adventures.