Why Hospitals and Labs Trust EOGas 4PLUS for Reliable Sterilization

In hospitals and laboratories, where even a microscopic contaminant can endanger lives, sterilization is not just a procedure—it’s a promise. Every instrument, tool and medical device must meet the highest standard of cleanliness to ensure patient safety and research accuracy.

Among the trusted technologies in sterilization today, Andersen’s breakthrough EO-Flexible Chamber Technology has earned a strong reputation for its precision, reliability, and safety. Built on Andersen Sterilizers’ decades of innovation in ethylene oxide (EO) sterilization, Andersen’s newest release, EOGas 4^PLUS, delivers consistent, validated results that hospitals and labs depend on daily. In fact, EOGas 4^PLUS is FDA-cleared to sterilize all flexible endoscopes, including those that have >1100 mm working lumens.

Understanding the EOGas 4^PLUS System

EOGas 4^PLUS is an advanced ethylene oxide gas sterilization system designed for healthcare and laboratory use. It uses a microdose of EO—one of the most effective sterilants known for penetrating even complex or delicate instruments—to eliminate bacteria, viruses, fungi, and spores without damaging sensitive medical devices.

Unlike high-temperature steam or hydrogen-peroxide systems, EOGas 4^PLUS operates at low temperatures (50°C) and low humidity levels. This makes it ideal for sterilizing heat- and moisture-sensitive devices such as electronics, optics, and flexible endoscopes.

EOGas 4^PLUS serves diverse sectors, including hospitals, research labs, dental clinics, and pharmaceutical facilities—all seeking dependable sterilization without compromising instrument integrity.

Why Sterilization Reliability Matters

Reliability in sterilization is non-negotiable. A single failure can lead to life-threatening infections, compromised studies, or regulatory penalties. In healthcare environments, sterilization is directly tied to patient outcomes; in laboratories, it affects the accuracy of experiments and data integrity.

Because EO is gentle, compatible and penetrating, EOGas 4^PLUS terminally sterilizes medical devices that cannot be sterilized using other modalities, making EOGas 4PLUS the perfect complement to any SPD’s infection prevention strategy. EOGas 4^PLUS is the only system cleared by FDA for the terminal sterilization of duodenoscopes and colonoscopes (≥ 1.2 mmID, ≤3530 mm maximum length of any channel).

Core Features That Make EOGas 4^PLUS Reliable

1. Low-Temperature Sterilization

EOGas 4^PLUS operates at a gentle 50°C, preserving sensitive materials such as plastics, fibers, and electronics. This allows hospitals and labs to sterilize devices that would otherwise be damaged by high-heat methods like autoclaving.

2. Low-Dose Sterilization

Andersen’s state-of-the-art EOGas 4^PLUS, featuring award-winning EO-Flexible Chamber Technology, delivers. EO-FCT is significantly different than traditional EO rigid chamber systems that use up to 90% more EO per cycle to achieve terminal sterilization. EOGas 4^PLUS uses just 17.6 grams of EO per cycle, making this EO sterilization system one of the safest. In 2019, FDA recognized EO-FCT, awarding Andersen with its Innovation Challenge Award.

3. Zero Emissions

When paired with an Andersen emissions abator, EOGas 4^PLUS releases less than 0.02 grams of EO into the environment per cycle, making EOGas 4^PLUS one of the most environmentally friendly on the market. EOGas 4^PLUS has the same power requirements as a typical hairdryer.

4. Ease of Use

EOGas 4^PLUS simplifies the sterilization workflow. Users can load instruments, start the cycle, and leave the system to run automatically. Sterilization and aeration take place conveniently in the same chamber, increasing safety. Once the process is complete, sterilized items are ready for safe handling without additional steps.

5. Compact and Scalable Design

With its small footprint, EOGas 4^PLUS fits easily into hospital sterile processing departments or laboratory cleanrooms. Multiple chambers can be installed in parallel to increase throughput, offering flexibility as sterilization needs grow.

Protect your patients. Preserve your instruments. Learn more by reaching out to an Andersen Account Manager. To speak with one of our experts, please call 800.523.1276.