alarm
alertness
arrow
assistance
ceiling
clinic
copy
corridor
danger
directional
door
doorway
emergency
emergency signals
equipment
escape
exit
extinguisher
extinguishing
fire
firesafe
flame
floor
guidance
heat
horizontal
indoors
information
label
nobody
office
placard
protection
red
safety
screen
security
service
sign
signalizing
signals
steel
symbol
tunnel
urban
urgency
urgent
wall
ward
white