Water Filters - what they are!

You might use filters, but do you really understand them?

A filter is a device that blocks objects or substances while letting certainly sized or shaped others through. While filters are often known for their filtering of water, they aren’t used only for that.

Filters can be used to remove air pollution, to prepare coffee, or treat waste. The three main uses of filters are in water, air, and oil.

Water filters remove the bacteria from water, generally by means of a physical barrier large enough to remove the impurities, but minute enough to let the liquid through the filter. Not only used for drinking water, water filters can be used in irrigation systems, aquariums, and swimming pools to promote cleanliness.

Air filters are made from fiber materials which remove solid contaminants like pollen or dust. These chemical air filters use catalyst to remove airborne materials such as ozone or volatile organic compounds. Air filters are used in spaces where the quality of air is vital, like in building ventilation systems or in engines. Buildings tend to use foam, paper, or spun fiberglass to filter the air. The 2nd way uses elements with a static charge, which attracts dust particles to the filter. Combustion engines and compressors will generally use other filters like foam, paper or cotton.

Oil filters remove contaminants from a multitude of sources such as engines, transmissions, and lubricating and hydraulic oil. They are used in machinery. Generally hydraulic systems are equipped with oil filters to keep the products working well. Among the hydraulic systems that utilize filters are gas turbine engines, oil production plants, and transport and recycling facilities.

Filters will always be important, no matter the implementation. They keep our important materials and machinery running efficiently, making life better by making sure the things around us don’t break down and hurt us in the long haul.


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