Can communicate

Adding any new matter to SCP-022 has thus far proved impossible. Any object that enters SCP-022 disappears shortly after passing through the door, leaving no trace. This includes inanimate objects and biological specimens. See Addendum 022-001 and 022-002.

So long as an instance of SCP-022-1 possesses a functioning mouth, tongue, and trachea, it is able to communicate fully with researchers. See Interview Log 022-751 for details.