Filtration is a separation process that uses a filter medium to remove particulate matter, impurities, or contaminants from liquids, gases, or other materials. It is commonly used to purify or clarify fluids in a wide range of industries, ensuring they meet quality or safety standards. Filtration is an essential technique in water treatment, food and beverage production, pharmaceuticals, and chemicals to remove unwanted particles, bacteria, or other contaminants.