accident
advice
alert
attention
background
beware
board
bucket
careful
caution
clean
cleaner
cleaning
danger
fall
floor
hazard
hygiene
icon
illustration
image
indoors
information
interior
isolated
janitorial
lobby
maintenance
man
mop
nobody
notice
object
plastic
precaution
prevention
risk
safety
sign
slide
slip
slippery
surface
symbol
triangle
warning
wet
white
yellow