ND40 IND OS Bath/Bedroom Privacy with Outside Indicator

Lever with emergency release recessed slot outside; push button in lever inside; springlatch
In unlocked state latch is retracted by either lever
Outside lever is made inoperative by pushing button on inside lever
Rotating inside lever retracts latch and releases button unlocking outside lever; closing door also unlocks preventing lockout
Emergency unlock: an emergency key (sold separate) or small, flat screwdriver inserted in outside lever and turned releases button to unlock
Inside lever always free for immediate egress