bacteria
bathroom
blue
body
bubble
care
circle
clean
cleanliness
cleanse
cleansing
dirty
finger
flat
foam
hand
health
healthy
human
hygiene
hygienic
illustration
infection
instructional
lather
liquid
medical
microbe
nail
palm
personal
prevention
preventive
procedure
rinse
round
rub
sanitary
skin
soap
step
symbol
toilet
wash
washing
washroom
water
wet
wrist