For ship facilities, the marine environment can be highly destructive. Moisture and salt cause severe corrosion. 

Anticorrosive process is important stages for shipyard’s manufacturing, during process of sandblasting and coating, the relative humidity in surrounding condition has to be controlled less 50% to preventing any possible rustiness.

The make-up air must be dried by integrated desiccant dehumidification system and then supply to workshop, securing relative humidity less 50% to meet demand of coating process.