Coffee Filter
A coffee filter is a coffee-brewing utensil, usually made of disposable paper that is made of very small particles. This enables it to trap the dirt particles that are big and the small water particles can flow through, thus this gives us pure water.
Paper filters remove oily components called diterpenes; these organic compounds, present in unfiltered coffee, appear to increase the risk of coronary heart disease. Metal or paper mesh filters do not remove these components.