Active alumina can be used as a desiccant in the process of absorbing moisture from compressed air. As the moist air passes through the absorbent material, water molecules are trapped inside the porous structure of the absorbent and finally dry air is released from the absorbent bed.

Molekursio is a type of zeolite and it is one of the most important effective materials in dehumidifying and separating water from all kinds of liquids and gases. Molekursio has a higher performance than other moisture absorbents.