Which of the following is a popular household filter?
Candle type filter is a popular household filter. Ceramic candle filters are simple devices made out of clay and are used to filter drinking water in order to remove turbidity, suspended materials and pathogens. Removal takes place by physical processes such as mechanical trapping and adsorption on the ceramic candles, which have micro-scale pores. Water is poured into the upper container which then flows through a candle situated at the bottom. Once the water passes through the candle, it gets collected in the lower container. This system treats the water and provides safe storage until it is used.