The unique double DFC system meets all the requirements of air at any depth, including two divers breathing simultaneously. The Natural Convection Channel (NCC) system increases the performance in cold water. The superior thermal conductivity of carbon reduces the condensation of humidity in the exhaled breath thereby diminishing the dry mouth feeling at the end of the dive. Carbon 52 is perfect for any type of diving. Ideal placement of hoses combined with an extremely soft and light Superflex hose makes it the lightest second stage on the market.