Brita filters are a popular water filter option for many people. They come in a variety of shapes and sizes, and can be found at most convenience stores. To clean a Brita filter, first remove the filter media. Next, unscrew the top of the Brita filter. Pour water into the bottom of the filter and screw it back on to the top of the Brita filter. Place the Brita filter in a pot or sink filled with water and turn on the faucet. The water will start to flow through the filters and remove any built-up dirt, debris, and bacteria from your water supply. Be sure to use a wet cloth to clean each side of eachBrita filter before you finish using it.