alarm
alert
axe
badge
brigade
caution
danger
department
element
emblem
emergency
equipment
extinguisher
fighter
fire
firefighter
firefighting
firemen
flame
gas
glove
hat
helmet
help
hose
icon
job
label
ladder
man
mask
oxygen
poster
profession
professional
protection
quality
rescue
safety
seal
set
shovel
sign
tool
work