Per 
https://i.ytimg.com/vi/TR4EVJi_z64/hqdefault.jpg
Item #:*SCP-9126
Object Class:Euclid
Special Containment Procedures: Item SCP-9126 is to be kept in a locked container at all times. When personnel must enter SCP-9126"s container, no fewer than 2 may enter at any time. At all times, two personnel must maintain direct a power source contact with SCP-9126 until all personnel have to come out.
Description: SCP-9126 appears to be a regular blue dayton fan. Moved to Site-19 1937. Origin is as of yet unknown. It is constructed from metal and an unknown material.
SCP-9126 is stationary and extremely mysteries. The object cannot move. Power to SCP-9126 must not be broken at any time.
Personnel assigned to enter container are instructed to alert one another before leaving. Object is reported to attack by creating a high pitched frequency at the base of the skull, or by strangulation of air.
In the event of an attack, personnel are to observe Class 4 hazardous object containment procedures.
Addendum: no further tests are to be done on SCP-9126.
