What does gas sterilization involve?

Ethylene oxide (EtO) gas is considered an alkylating agent, meaning it works by damaging the replication capability of microorganisms present on the surface and inside the products.

The treatment occurs in a vacuum chamber after preconditioning the products, which are sterilized in their final packaging. One of the only prerequisites is that part of the packaging must be permeable to air so that the gas can penetrate and sterilize all accessible areas.

To ensure a customized sterilization process, IONISOS determines the parameters of the EtO sterilization cycle based on your products’ characteristics, whether it’s their composition or density. There are five different criteria: gas concentration, humidity, temperature, pressure, and exposure duration to the gas.

During preconditioning, the products are preheated and humidified to ensure uniform treatment, regardless of storage conditions.

Once sterilization is complete, a degassing phase using vacuum and rinsing in the chamber is necessary to eliminate residual ethylene oxide still present.

Depending on the characteristics of the ethylene oxide cycle, the entire process can take from a few hours to several days.

A sterilization technique compatible with a wide range of products

Ethylene oxide (EtO) gas has the advantage of being compatible with a wide range of products, including many resin-based products and medical devices: catheters, dressings, compresses, care sets, syringes, surgical trays, rubber gloves, prosthetics, and single-use devices.

Why choose IONISOS?

With over 60 years of experience in industrial sterilization, IONISOS has been offering its clients ethylene oxide (EtO) gas sterilization services since 2004.

By choosing our services, you are assured of receiving a high-quality service, with a customized EtO treatment cycle and a dynamic accelerated degassing phase lasting no more than 24 hours.

Our two specialized treatment sites are certified and strictly adhere to current standards, with rigorously improved quality processes. Both sites have a large capacity for receiving and processing to ensure responsiveness and flexibility, as well as an analysis laboratory for performing sterility controls on-site before delivering your order.

You also benefit from personalized support with a dedicated contact person who will oversee all of your projects. This person will be able to answer your questions and guide you toward the most appropriate technique based on your needs.