Do the medical filters restrain all bacteria?

Yes, the medical water filters restrain all legionella bacteria (Legionella pneumophila) thanks to their hollow fibre membrane technology. Hollow fibre membranes are individual tubes whose walls display a defined pore width. Water is directed into the tubes and then exits through the pores in the walls. 99.99999% of legionella bacteria are restrained by the pore size in the tubes.