Ethylene Oxide sterilizer (EtO) is a common gas used for low temperature sterilization.It is most commonly used to sterilize instruments with long lumens such as endoscopes and all materials that have to be sterilized but cannot withstand higher temperature.EO sterilizer is mainly widely used for medical and pharmaceutical industry which can sterilize heat- or moisture-sensitive medical equipment without deleterious effects on the material used in the medical devices.

Ethylene oxide sterilizer is convenient transportation and storage, no need for huge gas cylinders, no need for filtering gas, and more importantly without CFC.It is environmentally friendly and safe.

Medical devices are sterilized in a variety of ways including using moist heat (steam), dry heat, radiation, ethylene oxide gas, vaporized hydrogen peroxide, and other sterilization methods (for example, chlorine dioxide gas, vaporized peracetic acid, and nitrogen dioxide). Ethylene oxide sterilization is an important sterilization method that manufacturers widely use to keep medical devices safe. For many medical devices, sterilization with ethylene oxide may be the only method that effectively sterilizes and does not damage the device during the sterilization process. Medical devices made from certain polymers (plastic or resin), metals, or glass, or that have multiple layers of packaging or hard-to-reach places (for example, catheters) are likely to be sterilized with ethylene oxide.