Biocides are chemical substances designed to kill or control harmful organisms, such as bacteria, fungi, and viruses. They are commonly used in various applications, including disinfectants, preservatives, and pest control products. Biocides help maintain hygiene and prevent the spread of diseases in both household and industrial settings. These substances work by disrupting essential biological processes in target organisms, leading to their death or inactivation. Biocides can be found in products like household cleaners, water treatment solutions, and agricultural pesticides. Proper use and regulation are important to minimize potential risks to human health and the environment.