A. Ozone is very effective as a sanitizer, however because of the low doses being produced along with ozone's short life span ,it is improbable that there will be a residual of sanitizer in the water, therefore, it is recommended that you maintain a 1 PPM residual of chlorine to prevent typical algae problems. Reduced maintenance time and chemical usage will give you more time to enjoy your pool or spa. A virus is a parasitic, infectious microbe which can cause disease in humans. Parasite eggs are large in microscopic scale and relatively easy to filter out, but are generally resistant to other disinfecting methods. Cysts are protozoa that produce a special protective shell.
Chemical water can leave undesirable odors and taste.
A. Ozone pollution or smog pollution alerts are not the same. Ozone oxidizes and destroys oils and other contaminants in water. Ozone can significantly reduce levels of harsh chemicals such as chlorine and bromine. Ozone acts as a microflocculant aiding in the removal of minerals such as iron and manganese. Ozone is pH neutral.