F09 Entrance or Public Restroom

ANSI/BHMA code F09 Entrance or Public Restroom function.

Latch bolt retracted by lever/knob from either side unless outside is locked by
key from inside. When outside lever is locked, latch bolt is retracted by key
outside or by operating lever inside. Inside lever is always free for immediate
exit. Auxiliary latch deadlocks latch-bolt when door is closed.

M8A0