Shenzhen Dedepu Technology Co.,Ltd. Corporate Culture: Exploring, Exploiting, Pursuing Dreams; Making Everything Possible. Includes: 1*S3000 Oxygen Tank (0.5L) 1*Diving Storage Bag Specification: 0.5L Material: Aluminum 6061-T6+PP Breathing time: 10-15 minutes (depends on vital capacity) Gas capacity: 3.0 CU FT/85LITERS Maximum pressure: 3000PSI/200BAR/20MPA Maximum filling pressure is 3000PSI or 200bar, and the gas with oxygen content greater than 40% cannot be filled. Suitable for recreational diving air source with depth of less than 10 meters. Can be used as a backup air source for recreational diving at a depth of 30 meters. Warning: 1. Do not face to the cylinder straightly when you inflate. 2. Turn on the shutoff before inflation. 3. Press the pressure relief valves to release force after finishing inflation. 4. Inflated pressure is strictly prohibited to exceed 3000psi/200Bar/20Mpa. Overseas or International customers items depending on the Country may apply import customs charges that need to pay when the items will be received.