Medical applications

In hospitals and other healthcare environments, chlorine dioxide gas helps sterilize medical and laboratory equipment, surfaces, rooms, and tools. Researchers have found that at appropriate concentrations, chlorine dioxide is both safe and effective in helping to eliminate Legionella bacteria in hospital environments. Legionella pneumophila bacteria can cause Legionnaires’ disease, a potentially fatal type of pneumonia.

Chlorine dioxide is not a cure or treatment for any medical conditions, including but not limited to autism, HIV, malaria, hepatitis viruses, influenza, the common cold, and cancer. Claims that ingesting chlorine dioxide, often advertised as “Miracle Mineral Solution” or MMS, will cure these or other ailments are false. The U.S. Food and Drug Administration (FDA) advises against consuming MMS.

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Secutity information

Chlorine dioxide is used to disinfect drinking water around the world. According to the U.S. Centers for Disease Control and Prevention, chlorine dioxide is added to drinking water to protect people from harmful bacteria and other microorganisms. The EPA recognizes the use of chlorine dioxide as a drinking water disinfectant, and it is included in the World Health Organization (WHO) guidelines for drinking water quality. In its pure form, chlorine dioxide is a hazardous gas, but most people are “not likely” to breathe air containing dangerous levels of chlorine dioxide because it quickly breaks down in the air into chlorine gas and oxygen. For workers who use chlorine dioxide, the U.S. Occupational Safety and Hazard Administration (OSHA) regulates the level of chlorine dioxide in workplace air for safety reasons. OSHA has set a permissible exposure limit (PEL) for chlorine dioxide at 0.1 parts per million (ppm), or 0.3 milligrams (mg) per cubic meter (m3) for workers using chlorine dioxide for general industrial purposes. OSHA also has a PEL for chlorine dioxide for the construction industry. Chlorine dioxide is always manufactured at the location where it is used.