Air and water are the two most important things required in the entire life of human beings. Air and water are present in abundance at earth but all of them can't be consumed. Most of the water present at the earth are not fit for drinking. Different types of contaminants like organic (bacterias, viruses, molds, etc) and inorganic (metals, non-metals, etc) are present in general water and drinking it can cause a number of diseases. Likewise indoor air isn't always suitable for respiration, they also contain harmful gases, molds, dusts, etc. To overcome these difficulties, science and technology has provided us air and water filters. The air purifiers purify the indoor air and make them suitable for breathing. The water filters remove the unwanted harmful substances from the drinking water and make it hygienic for drinking.
The filters we use in our daily life are manufactured by the help of a number of machines and equipments. Different types of machines using different technology are used for making air and water filters.