Why is it dangerous to enter confined space?

Entering a confined space can be dangerous due to potential hazards such as toxic gases, lack of oxygen, and the risk of engulfment or entrapment. These environments often have limited ventilation, making it difficult to detect harmful substances or maintain breathable air. Additionally, confined spaces can pose physical dangers, such as falling objects or machinery, increasing the risk of injury or fatality. Proper safety measures and monitoring are essential to mitigate these risks.