An oxygen reduction system, comprising the following: - at least one gas separation system for providing an oxygen-reduced gas mixture at an outlet of the gas separation system as needed; and - a compressed gas storage (105; 105a-g), particularly in the form of one or more compressed gas containers, for storing an oxygen-reduced gas mixture or inert gas in compressed form, wherein the compressed gas storage (105; 105a-g) is fluidly connected or connectable to at least one enclosed area (107; 107a, 107b) by means of a line system in order to feed at least a portion of the gas mixture or respectively inert gas stored in the compressed gas storage (105; 105a-g) to the at least one enclosed area (107; 107a, 107b) when needed; wherein the outlet of the gas separation system is or can be fluidly connected selectively to an inlet of the compressed gas storage (105; 105a-g) and/or to the at least one enclosed area (107; 107a, 107b) in order to feed the gas mixture provided at the outlet of the gas separation system to the compressed gas storage (105; 105a-g) and/or the at least one enclosed area (107; 107a, 107b) when needed; and wherein - the compressed gas storage comprises a plurality of spatially separated compressed gas containers (105a-g) connected together in parallel which have at least one, preferably one respective container valve in each case; - the outlet of the gas separation system is connected or connectable to a first collecting line via a valve; - a first line section is provided for preferably each of the plurality of compressed gas containers (105a-g) via which the respective container valve of the compressed gas container (105a-g) is fluidly connected to the first collecting line; characterized in that - the container valve of preferably each of the plurality of compressed gas containers (105a-g) is fluidly connected in each case to a second collecting line via a second line section; and - the second collecting line is fluidly connected or connectable to the at least one enclosed area (107; 107a, 107b) via a valve (106, 106a-d), in particular an area valve. - at least one gas separation system for providing an oxygen-reduced gas mixture at an outlet of the gas separation system as needed; and - a compressed gas storage (105; 105a-g), particularly in the form of one or more compressed gas containers, for storing an oxygen-reduced gas mixture or inert gas in compressed form, - the compressed gas storage comprises a plurality of spatially separated compressed gas containers (105a-g) connected together in parallel which have at least one, preferably one respective container valve in each case; - the outlet of the gas separation system is connected or connectable to a first collecting line via a valve; - a first line section is provided for preferably each of the plurality of compressed gas containers (105a-g) via which the respective container valve of the compressed gas container (105a-g) is fluidly connected to the first collecting line; - the container valve of preferably each of the plurality of compressed gas containers (105a-g) is fluidly connected in each case to a second collecting line via a second line section; and - the second collecting line is fluidly connected or connectable to the at least one enclosed area (107; 107a, 107b) via a valve (106, 106a-d), in particular an area valve.