Sediment and Taste and Odor filters only improve the appearance, taste and odor of drinking water, but do little to protect you from harmful contaminants if present in water. These filters can be used to pre- test water with a heavy sediment content to help extend the life of a more effective system.		General Ecology® Microfiltration systems, with the microfiltration version of our "Structured Matrix" technology rated at 0.5 micron (1 micron absolute) retention, are excellent but are intended for use only with water supplies that are considered bacteriologically acceptable. If viruses or bacteria are present in water source, a purification system is needed for safe drinking water.		General Ecology® Purification Systems, with "Structured Matrix" purification technology rated at 0.1 micron (0.4 micron absolute) retention, are unsurpassed and certified to remove cysts, bacteria and viruses. These purifiers also remove a wide range of pesticides, herbicides and other chemicals, chlorine, foul tastes, foul odors and color making your drinking water delicious, refreshing and safe.