Aqua-Lung
Foamite
acid
adjutage
air cylinder
aquascope
automatic sprinkler
bathyscaphe
bathysphere
benthoscope
carbon tet
carbon tetrachloride
carbon-dioxide foam
catheter
deck gun
deluge set
diving bell
diving boat
diving chamber
diving goggles
diving helmet
diving hood
diving mask
diving suit
drainpipe
efflux tube
extinguisher
fire apparatus
fire engine
fire hose
fire hydrant
fireplug
flue pipe
foam
foam extinguisher
funnel
garden hose
gas pipe
hook-and-ladder
hose
hosepipe
ladder pipe
nipple
organ pipe
periscope
pipe
pipeline
pipette
piping
pumper
air duct
air passage
airway
breathing apparatus
breathing device
breathing machine
dive
ventilator
snorkeled
snorkeling
snorkelling
snorkels
HAZMAT
ancillary
blowhole
cold-weather
cylindric
detecter
duct-taped
ebonite
fallopian
homebuilders
maintop
nebulizer
rebreather
sailless
scuba
snippy
telem
topgallant
treemouth
vice-palatine
vulcanite