FILTER CHANNEL IRCOP

This command controls who may set a room to be filtered for profanity. It can be set to ALL, NONE, CHANOP, IRCOP, SA, or ADMIN. If it is set to all then all rooms will be filtered. If it is set to none then no rooms will be filtered. The ircop option causes only +L rooms to be filtered and allows network operators to set a room +L..

Example:
/as filter channel ircop

This gives the power to filter rooms to a fairly large number of people, but still only to those who are specifically trusted by the network.