Ozone, also known as trioxygen, is an elemental molecule consisting of three oxygen atoms. Commonly and naturally occurring in a level of the atmosphere called the stratosphere, the ozone layer is instrumental in protecting Earth from harmful UV light rays and solar radiation. However ozone also has applications beyond atmospheric protection and that is in the water purifying industry, through a process called ozonation. Ozonation works when water purifiers create and raise ozone concentrations in water to a specified level. This process of creating ozone comes around from an ozone generator, a device which pushes compressed air through a powerful UV light source that creates a chemical reaction much in the same way that the sun is able to. Some of this air is then converted into ozone and the entire gaseous mixture is then sent through a diffuser which mixes ozone-saturated bubbles with water, thus increasing the dissolved ozone concentration. Ozone has been proven to increase water quality by reducing and neutralizing dangerous bacteria and other organisms that are increasingly found in water, by “oxidizing” the bacteria much the same way iron is turned to rust. This oxidation kills harmful microbes that can cause diarrheal diseases and other sicknesses. ORP meters are instrumental in the application of ozonation and ozone system monitoring. Oxidation Reduction Potential (ORP) can be used to measure the level of ozone concentrations due to the chemical properties of how ozone reacts with contaminants and oxidizes them. Ozone is negative in nature because of its elemental composition and thus its third oxygen atom is prone to break its covalent bond to the other two oxygen atoms and bind to other bodies, such as bacteria. This binding is called oxidation and it breaks down the bacteria and other contaminants and transforms them into another material that can be sifted out (cleaned) by other filter systems that would normally be unable to cleanse the water of those organisms. ORP meters measure the electric potential, or the level and ability of these negative ozone molecules to break apart and oxidize in water. There exists a correlation between the level of negative electric potential in the water and the level of ozone concentration.