alarm
alert
background
caution
connection
control
danger
emergency
equipment
extinguish
extinguisher
extinguishing
fighting
fire
fire extinguisher
firefighter
flame
gauge
hazard
help
hose
industrial
industry
metal
panel
pipeline
pr
precaution
pressure
pressurized container
prevention
professional
protection
pulling
pump
red
safety
safety pin
security
service
sign
smoke
sprinkler
system
technology
tool
urgency
valve
wall
warning
white