Single stage Reverse Osmosis  achieves the purity needed for feeding multi-effect stills and pure steam generators;  with the addition of a second  RO stage or EDI  the plant can reliably  meet EP & USP standards for purified water. Stilmas units are built to sanitary standards and sterilisable.

Stilmas Vapour Compression stills offer an alternative way of purifying water. The distillate meets all the EP and USP standards, and the separation process gives a reliable one-step means of generating highly purified Water with endotoxin control (HPWEC)