Gas Mixture:NITROX 32% up to 60%CO2 Filtration:Calcium Hydroxide and Extendair Solid CartridgesCounter Lungs:2 x 6.2 Liter capacity each CO2 Canister Capacity:2,35 Kg/ of 5.2 Lbs material Dive Duration:2h 30 min. ( Nitrox 32%) and up to 4 hours with Nitrox 60%Operating Temperature:-1° + 35° Celsius/ 30 to 98 degrees FahrenheitMax Depth:40 meters/132 Feet with Nitrox 32% and a PPO of 1.6Total Weight Ready For Use:27 Kg/54 Lbs – neutral in water