H2O2, commonly known as hydrogen peroxide, is a chemical compound made up of two hydrogen atoms and two oxygen atoms. It appears as a colorless liquid and is often used as a disinfectant and bleaching agent. Its strong oxidizing properties make it effective for killing bacteria and viruses, which is why it is frequently found in household cleaning products. In addition to its use in cleaning, H2O2 is also utilized in various industrial applications, such as paper bleaching and wastewater treatment. It can be found in different concentrations, with lower concentrations available for home use and higher concentrations used in industrial settings.