Most waterfilters have pore sizes of about 0.2 micron. However, legionella are long and slippery bacteria and can penetrate such membranes, rendering it useless. Therefore, we developed a membrane with 0.15 micron and 0.05 micron absolute cutoff to prevent legionella to pass through (tested by an independent laboratory). Despite the higher filtration performance, our Legionella membranes have an incredible flowrate, making it feasible for any application! Click on the image to learn more about our membranes!