underwater
adventure
aid
air
aqualung
box
care
case
color
colorful
compressed
contour
cross
cylinder
diver
diving
emergency
equipment
fishing
gas
health
help
hospital
icon
illustration
isolated
kit
leisure
line
linear
marine
medical
medicine
nautical
oars
outline
pressure
scuba
sea
set
ship
sign
tank
transportation
valve
vessel
water