
Ethylene oxide (EO) gas
Ethylene oxide (EO) gas is a colorless, flammable substance used primarily to sterilize medical equipment and healthcare products. It effectively kills bacteria, viruses, fungi, and spores by disrupting their DNA, making it ideal for sterilizing items that are sensitive to heat and moisture. The gas penetrates packaging and complex shapes, ensuring thorough sterilization. However, EO is also a toxic and potentially carcinogenic chemical, so strict safety measures are necessary during its use and handling. After sterilization, items are properly aerated to remove residual gas before use.