Water filtration refers to the method where contaminants are removed from the water. It means eliminating all sediments and unwanted substances such as dangerous chemicals and contagions from our water. A filter improves the taste and smell and decreases the level of numerous chemical contaminants in drinking water, but you have to remember that no filter or combination of filters can even come close to eliminating all of the known toxins bacteria and heavy metals present in our water today. Water filtration systems can be specialised to target a particular water issue such as high sediment, bacteria, heavy metals, fluoride or chlorine taste and will lead to improved health.