👉 The term "prechloroform" is a chemical compound. It's also known as chlorofluorocarbons (CFCs). These are chemicals that were used in refrigerators and air conditioning systems during the 20th century. The CFCs were widely used because they were inexpensive, efficient, and did not cause any harm to the environment. However, their high levels of chlorine made them highly toxic when released into the atmosphere. They have been banned worldwide since
