1. Method for the biological decontamination of treatment goods (4) using a reactive gas (R), comprising the steps of:
   • Generating a reactive gas (R) from a process gas by igniting a plasma, wherein the reactive gas (R) has a higher density than air at the same pressure and temperature,
   • Filling a container (3) with the reactive gas (R) so that the container (3) is almost completely or at least partially filled with the reactive gas (R),
   • Biologically decontaminating the treatment goods (4) in the container (3) using the reactive gas (R).
2. Method according to claim 1, wherein the treatment goods (4) are placed in the container (3) filled with reactive gas (R) so that the treatment goods (4) are completely covered by the reactive gas (R), and wherein the treatment goods (4) are removed from the container (3) after a decontamination period.
3. Method according to claim 1 or 2, wherein the container (3) is a package, and the package is almost completely filled with the reactive gas (R), and wherein the package is sealed after being filled with the reactive gas (R).
4. Method according to any of the preceding claims, wherein the container (3) is a liquid container, and the liquid container is almost completely filled with the reactive gas (R), and wherein the liquid container is sealed after being filled with the reactive gas (R).
5. Method according to any of the preceding claims, wherein the reactive gas (R) contained in the container (3) is absorbed or broken down using an adsorber.

The above patent claims have been translated from German into English.