alarm
axe
badge
banner
danger
dangerous
department
design
element
emblem
emergency
engine
equipment
extinguisher
fighter
fire
firefighter
firefighting
fireman
flame
graphic
hat
helmet
help
hero
hose
hydrant
icon
illustration
job
mask
occupation
outdoor
profession
protection
protective
rescue
safety
service
sign
sticker
symbol
tool
training
transport
uniform
vehicle
volunteer
work