911
alarm
alert
artwork
axe
background
badge
border
company
cross
danger
department
design
emblem
emergency
engine
equipment
fighter
fire
firefighter
fireman
helmet
hero
hook
icon
illustration
insignia
label
ladder
logo
maltese
nozzle
protection
red
rescue
save
seal
service
shield
sign
stamp
sticker
symbol
tool
uniform
volunteer
wallpaper
water
workers