Air grinders are used in the heavy steel assembly operation as you can find in shipbuilding.
Compressed air tools are used in marine building and assembly.
Ballast water purification
Compressed air is used to oxidize ballast water before it is released to the ocean.
Air filtration is used to provide breathing quality air.
Compressed air is used for instrumentation demands in ships.
Compressed air is filtered to produce nitrogen.
Offshore drilling exploration
Portable compressed air is used for offshore drilling exploration processes.
Portable compressed air is used for ship refurbishment, to operate soda / ice blasting equipment and to remove rust from the ship's exterior.