Introduction. Ozone gas,in nature, occurs as ultraviolet rays from the sun break down the oxygen in theatmosphere into ozone molecules. Technologically, it is obtained from the airwe breathe with the help of electron discharge or pure oxygen. Ozone is usedextensively in recent years for the purpose of disinfection, due to its highoxidation potential. Ozone gas, which is a raw material oxygen, is the onlynatural disinfectant. Aim of the study. Bromata, formed in the disinfection of drinkingwater with ozone, emphasizes the importance of process control.Results. It is possible to providesafe disinfection by ensuring the use of online monitored technologies.Theformation of a natural disinfectant has led to the rapid spread of usage areasand their safe use. In the field of aquaculture, interest in the use of ozonefor disinfection has increased rapidly in recent years. In the disinfection ofwaters, in the food industry, in cold air depots, in eliminating odor, inswimming pools, in color removal, in waste water treatment, in nitrite,ammonia, iron, manganese removal; Ozone gas is used in the disinfection ofliving environment air. Ozone is a gas with very high oxidation power and themost powerful disinfectant known. The high oxidation force plays an importantrole in eliminating situations that would cause ozone fish diseases. The effectof disinfection of ozone gas is 3125 times higher than that of chlorine under thesame conditions. It is more effective against chord and cysts and viruses. Inaddition, after ozone is obtained by disintegration of the oxygen in the air,and after completing the disinfection task due to its unstable structure, it isalways converted to raw material oxygen.Key Words: Water,Ozone,Bromate,Toxicity