alert
american
arms
axe
badge
black
coat
company
cross
danger
department
emblem
emergency
fighter
fire
firefighter
fireman
fireplug
florian
helmet
hero
hook
hose
hydrant
icon
illustration
label
ladder
mask
nozzle
object
of
patron
pike
pole
protection
red
rescue
retro
safety
saint
seal
sign
stamp
sticker
symbol
tool
truck
uniform
vintage
volunteer
water
weapon
worker