Filtering materials in Toku can be used for all sorts of things. These materials are used as purification tools and keep out all the unclean factors such as germs and dust etc. Filtering objects can be noticed in water purification devices and air conditioners to name a few. The function of filtering equipment as the name suggests is to clear the unwanted matters and keeping things clean and healthy. Purifying the atmosphere and the water that we drink is part of the filtration process. Using various chemicals and different substances companies are able to keep things various substances and the atmosphere clean.