Activated carbon has been used for centuries, dating back to ancient civilizations like the Egyptians and Romans, who used it to treat water and purify the air. In modern times, its use has expanded to a diverse array of industries, including water treatment, air purification, gas separation, chemical purification, medical applications, and even in the food and beverage industry. In this comprehensive article, we will delve into the various benefits and applications of activated carbon in detail. We will explore its physical and chemical properties, discuss its adsorption mechanisms, and outline its role in environmental protection and human health.