Green-Tak Counter Top Nano Drinking Water Purifier is a revolutionary, sustainable solution for water purification. The nano water purifier is made of multi-layer nano-film and high quality activated carbon media. By using nano x-plus water purification technology, the nano-film can remove bacteria and heavy metals up to 99% and remove chlorine, organic chemicals, pesticides, bad smell and odors but keeps mineral in the water. The nano filter has been tested and approval by SGS certification. Features Nano X-Plus Water Purification Technology. Remove bacteria up to 99%. Remove heavy metals such as lead, mercury, chromium, cadmium up to 99%. Remove chlorine and organic chemicals. Remove bad smell and odors. Retain Minerals in the water. Quick change type filter, easy filter replacement and maintenance.