AFM® ng Grade 1 will remove 95% of all particles in the water down to 1 micron. The best a very high quality sand or other glassand can achieve is 20 microns at an efficiency of 95%

AFM® 0 is able to remove particles down to 1 microns at an efficiency of more than 95%. AFM® 0 has been developed for best filtration where flocculation cannot be used in the process

The result were collected from filters operated at 20 m/hr (8 gpm/ft2) filtration velocity with no flocculation. Therefore the results are a direct comparison between the different filtration media. At slower water flowrates the results for AFM® improve exponentially.