background
bin
brick
brown
bucket
building
caution
container
corrosion
danger
douse
emergency
equipment
extinguish
extinguisher
fighter
fire
firefighter
fireman
flame
foam
handle
hazard
hose
icon
industrial
industry
liquid
material
metal
object
old
pail
precaution
protect
protection
quell
red
rescue
safe
safety
sand
security
service
sign
tool
wall
warn
water
work