A container arrangement includes a plurality of flexible disposable bags (20a, b, c) which each have an inlet element to which a flexible connecting tube (18a, b, c) is attached, wherein each connecting tube (18a, b, c) branches off from a flexible common main line (12, 14, 16) which has a common inlet section (12) on the intake end. The main line (12, 14, 16) has a common gas outlet section (14) at the discharge end. A non-return valve (146) which closes against the gas outlet direction and a gas-permeable, liquid-tight sterile filter (144) are arranged in the common gas outlet section.
