The correct use of medical hydrogen peroxide (hydrogen peroxide) is to achieve the purpose of disinfection through liquid flushing and gas diffusion. 1. Liquid flushing: liquid hydrogen peroxide disinfection site for surgical incisions, trauma incisions, skin and mucous membranes, etc., disinfection for repeated rinsing and wiping, keep the ratio of hydrogen peroxide for 3% (30g / L) is the most appropriate, not only disinfection but also does not damage the normal tissues, disinfection time of 3 ~ 5min. 2. Gaseous dispersion: through aerosolization to form gaseous hydrogen peroxide, dispersed into the air after the redox reaction can occur rapidly, aerosol sprayer is the preferred spray container, disinfection of the appropriate proportion of 3% (30g/L) hydrogen peroxide, disinfection of indoor density should be maintained at 20mL ~ 30mL/m3, the conventional disinfection time of 60min. Attention to hydrogen peroxide for external disinfection, contraindicated oral. High concentrations will irritate and corrode mucous membranes role, should wear protective gloves to prepare the liquid. It is recommended to read the instructions first when using, and take good protective measures to avoid injury to yourself.