My Journal
SMACO Mini Scuba Gear Review Safety

Please stop pumping when the oxygen cylinder pressure gauge pointer reaches 3000psi/20bar (the red indicator line), the scuba is full. Smaco mini scuba tank diving oxygen cylinder underwater breath with hand pump 1 pc x premium package case. The scuba tank is a good diving equipent, it can breathe underwater freedom for 6-10 minutes that all depends on personal lung capacity and the diving depth.