Which disinfection method uses iodine?

The method that uses iodine for disinfection is indeed water purification tablets. These tablets contain iodine as a chemical agent, which is effective in killing microorganisms in water, making it safe for consumption. Iodine is known for its rapid action against bacteria, viruses, and some protozoa, providing a reliable way to purify water, especially in emergency or field situations.

Water purification tablets are specifically designed to make the process convenient and effective, as users can easily add them to water sources to reduce pathogens. This contrasts with boiling, which is a physical method of disinfection that relies on heat rather than chemicals, and with calcium hypochlorite and water filtration, which employ different chemical substances and physical methods for purifying water.