
EtO sterilization indicator labels safeguard your operations
Don’t take a chance on contamination. CleanMark’s ethylene oxide indicator labels clearly indicate when EtO sterilization has been completed, keeping your customers safe and your processes flowing smoothly.
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Easily verify that EtO sterilization is complete
CleanMark’s EtO sterilization indicator labels are custom designed to visually confirm sterilization by ethylene oxide (EtO), lowering the risk of contamination, operational delays, and regulatory noncompliance.
Prevent contamination
CleanMark’s EtO indicator labels feature a distinctive color change from green to purple upon exposure, providing immediate visual confirmation that sterilization conditions have been met.
Reduce compliance stress
Meeting regulatory requirements becomes simpler with labels specifically designed for EtO sterilization processes. CleanMark’s EtO sterilization labels clearly document sterilization status to streamline audits and regulatory inspections.
Improve operational efficiency
Streamline sterilization verification and inventory processes with CleanMark labels that provide instant visual assurance of EtO sterilization completion.

Industry-leading innovation in EtO sterilization indicator labels
Our EtO indicator labels use advanced technology to change color when exposed to EtO gases at sterilizing levels.
Chemical reaction
EtO sterilization indicators contain inks sensitive to ethylene oxide gas. When exposed to EtO under appropriate sterilization conditions — temperature, humidity, gas concentration, and exposure time — they undergo a chemical reaction.
Color change
The chemical reaction induces a clear and permanent color shift. This color change occurs only if the correct concentration of EtO, humidity, and temperature have been met for a specified time.
Verification of sterilization conditions
The distinct color shift demonstrates that sterilization conditions were adequate and that the item or packaging has undergone proper exposure to EtO gas.

Get a better EtO sterilization indicator today

What if I need a EtO sterilization indicator that’s clean or moisture resistant?
EtO indication is just one of many label aspects that need to be optimized for a label to perform well in your operation. We consider them all.
Let us design the perfect EtO sterilization indicator label for you
What sets CleanMark apart from other label producers is our expertise and level of service. Our label experts work with you to understand the exact parameters of your operational needs and then design a label that meets every one of them — even if we have to invent something new to make it happen.
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Stay up to date on the latest EtO sterilization indicator technology
From CO₂ durability to chemical-resistant coatings, we’ll keep you informed about advances that can make your processes run more smoothly.
Have more questions? We have answers!
Read on for answers to our customers’ most common questions.