CN gas, also known as chloroacetophenone, is a type of tear gas commonly used for crowd control and self-defense. It is a chemical compound that irritates the eyes, skin, and respiratory system, causing temporary blindness and difficulty breathing. Due to its effects, it is often deployed by law enforcement during protests or riots. While CN gas is effective in dispersing crowds, its use is controversial due to potential health risks. Prolonged exposure can lead to more severe respiratory issues and other health complications. As a result, many countries have regulations governing its use in public safety situations.