The document discusses common disinfectants used to kill bacteria, viruses, and other microbes. It notes that bleach, isopropyl alcohol, betadine-iodine, chlorhexidine, peroxides, quaternary ammonium compounds, and phenols are used as disinfectants, each with varying effectiveness against different microbes and required contact times ranging from 1 to 30 minutes. The document also warns that disinfectants can be inactivated by organic matter, their labels should be read carefully, and mixing disinfectants is not recommended.