alarm
alert
background
bell
box
break
building
button
center
control
copy space
danger
emergency
equipment
escape
evacuation
fire
fire alarm
glass
help
horizontal
indoors
industrial
industry
information
loud
metal
object
office
panel
prevention
protection
pull
push
red
rescue
safe
safety
school
security
service
sign
sound
switch
symbol
system
urgency
wall
warning
white