You need approx. 1/3 bottle (50 litres) of regeneration gas with a concentration of 2%-5% H2 in Ar or N2 to carry out the regeneration. The regeneration consumes approx. 3500l from the 50 litre bottle (approx. 70-80 bar). If you have selected the regeneration gas concentration <5%, the required regeneration gas quantity will increase to approx. 7000l.