alarm
arrow
background
building
case
danger
direction
door
doorway
elevator
emergency
equipment
escape
evacuation
exit
figure
fire
flame
forbidden
green
hazard
help
icon
illustration
information
isolated
label
leaving
lift
notice
office
people
protection
red
rescue
risk
run
safe
safety
security
sign
signal
stairway
symbol
urgency
wall
warning
way
white