Oinizers, also known as ozone generators, are devices that produce ozone (O3) for various applications, including air purification and odor removal. They work by using electrical discharges or ultraviolet light to convert oxygen (O2) in the air into ozone, which can effectively neutralize pollutants and kill bacteria. However, ozone can be harmful to human health at high concentrations, so it's important to use these devices with caution and in well-ventilated areas.