A pool ozone generator, also called an ozonator, is a device which emits ozone into pool water in order to filter and clean it. They are generally used in combination with more traditional chemical treatments. There are many benefits to using an ozonator in comparison with using high levels of harsh chlorine and other chemicals.

Ozone generators work by passing air through high voltages of electricity. This process separate the O2 molecules into separate O1 molecules. These new molecules combine with others to create ozone.

Studies have shown that the use of a pool ozone generator effectively cleans the pool and frees the water of mold, mildew, bacteria, yeasts, and fungi. They are also effective at neutralizing and removing bodily oils and other human contaminants in the water. This helps to reduce the need for other, harsher, purifying methods.

The use of a pool ozone generator usually reduces the need for chemical agents substantially. More effective models are in development which may virtually eliminate the use of harsh chemicals.

In comparison with chlorine, ozone does not irritate the eyes, nose, and mouth. Ozone also leaves the Ph balance of the water untouched, and is much less corrosive to a pool liner than chlorine use.