... m ceramic membranes cartridge Profile Travel water purifier uses unique dual ceramic membranes cartridge,filter finesse down to 0. 1 micron ... ,climbing,survival,military,foreign travel,emergency,etc.Technical Data:1.Filter Finesse: 0. 1 micron2.Output: Approx. 500ml/min3. ... compare to the best commercially available unit that can only filter down to 0.2 micron!· Entirely removes suspended contaminants ...