Per 
S.C.P. 6512
Containment procedures: SCP 6512 is to be kept in an airtight container at all times. The container is not to be opened under any circumstances. The container has two vacuums, one to pump it in and one to pump it out. At the time of transport, all personnel and civilians on base will be required to use a gas mask.
Description: SCP 6512 is a small cloud purple gas that is toxic to all living creatures. It was contained using a specially designed vacuum and pumped into the containment chamber. It seems to be semi-sentinent, although all it seems to care about is killing all life forms, including other SCPs. It has been used against other creatures, but most of them do not need to breathe and when used against SCP-682 the reptile was made unconscious for 14 minutes, but after it awakened, it was immune. Further attempts to terminate other SCPs using SCP-6512 have been postponed.
