0PPM Portable 150 GPD Reverse Osmosis RO+DI Filtration POQ-4B-150 Removes 99% of all Sodium, aluminum, lead, copper, arsenic, mercury, calcium, phosphate, iron, magnesium, zinc, chloride Removes 99% of all bacteria from your water Water Purity Reference: (1.)Tap or well water(200~400 PPM), (2.)After RO system(1~20 PPM)---&gt; (3.)After DI filter(0 PPM)