This water vapor can then be used for applications such as providing moisture to a plant growing medium or the air space of a growth chamber, to hydrate dry matter or to rehydrate dehydrated matter, or else it may be condensed for further use as liquid water.Hydrophilic Membranes???Hydrophilic membranes??? means non-porous membranes that absorb water, i.e., that allow water to pass through.