The massdeop command allows you to remove operator status in the specified room for all users. If you are in the room, you will also be deopped.
/msg operserv massdeop #opers
Massdeop is a quick way to try to restore order in a room if people have been opped who should not be. Once all the people are deopped in the room, you can start reopping those who should be opped. AOPs and higher will be able to op themselves with chanserv.