Salinity exists in oceanic atmosphere at aerosol form.Usually, seacrafts need desalted air, for example, air for combustion and cooling, airiness of communication cabin and electron cabin, etc.

• 海洋大气中含有盐分且以气溶胶形式存在，海洋舰船的进气往往有除盐要求，例如舰船发动机燃烧用和冷却用的进气、通讯电子舱的进气等。