accident
alarm
alert
ax
axe
bell
car
caution
collection
cone
danger
department
detector
emergency
engine
equipment
extinguisher
fire
firefighter
firefighting
fireman
flame
flat
help
hero
hydrant
icon
illustration
industrial
isolated
ladder
light
prevention
protection
protective
red
rescue
safety
secure
security
set
shovel
sign
siren
symbol
tool
truck
warn
water