For this discussion we will assess the costs of building detached a two-car as well as a four car garage. The measurements of the average two car model is 26'x26'or 676 square feet. The average square footage of a four car garage is 48'x30' or 1440 square feet.
U.S. National Library of Medicine(4.00 / 1 vote)Rate this definition: Filtration. A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates.
There are many different methods of filtration; all aim to attain the separation of substances. Separation is achieved by some form of interaction between the substance or objects to be removed and the filter. The substance that is to pass through the filter must be a fluid, i.e. a liquid or gas.