4 Cubic Feet EO Gas Sterilizer

Description

Healthcare facilities, laboratories, and medical device manufacturers require dependable solutions for sterilizing delicate instruments that cannot tolerate high heat or moisture. A 4 cubic feet EO gas sterilizer delivers an effective, compact option for low-temperature ethylene oxide sterilization. These systems are specifically designed to process heat-sensitive medical devices such as endoscopes, implants, electronics, multi-lumen instruments, catheters, and complex plastic components while achieving hospital-grade sterility.

 

The “4 cubic feet” designation refers to the sterilization chamber’s internal capacity, making these units popular tabletop or benchtop models. They are well-suited for hospitals, outpatient clinics, research labs, dental practices, and veterinary facilities with moderate sterilization volumes. By using ethylene oxide gas — a highly penetrating sterilant — these systems eliminate bacteria, viruses, fungi, and spores without damaging sensitive materials.

 

One of the most recognized models in this category is the EO Gas 4 by Andersen Sterilizers. This FDA-cleared system is trusted by professionals for its reliability, efficiency, and user-friendly operation. Other manufacturers also produce comparable 4 cubic feet EO sterilizers, often with customizable features for both clinical and industrial applications.

The process ensures deep penetration for sterility without damaging delicate items:

 

  • Preconditioning: Items are humidified (e.g., 12 hours at 55°C, 70% RH externally).

 

  • Air Removal: Vacuum pulls out air to prevent flammability.

 

  • Injection & Exposure: EO gas (mixed with CO₂ or N₂) is introduced; dwell time allows diffusion (4–8 hours total cycle).

 

  • Purge & Aeration: Gas is evacuated with fresh air/nitrogen; active aeration off-gasses residuals in-chamber. EO is effective at low temps (30–50°C) but requires monitoring for residuals (OSHA/EPA limits exposure to 1 ppm).

Working Principle of 4 Cubic Feet EO Gas Sterilizer

Key Advantages of Ethylene Oxide (ETO) Sterilization

 

  • Low-Temperature Processing: Operates safely at ambient to mild temperatures (around ), making it ideal for heat-sensitive materials that would degrade under traditional steam autoclaving.

 

  • Exceptional Penetration Power: The gaseous state effortlessly permeates complex lumens, narrow tubing’s, and intricate multi-layered packaging without compromising structural integrity.

 

  • Material Preservation: Functions as a dry, non-corrosive process that extends the operational lifecycle of high-value and delicate medical hardware, including cardiac catheters, stents, intraocular lenses (IOLs), specialized endoscopes, and precision microsurgical instruments.

 

  • Enhanced Reusability: Gentle molecular interaction safeguards the integrity of delicate disposables and accessories, allowing safe multi-cycle reuse where applicable.

 

Portfolio Classification of ETO Sterilizers

 

  • Semi-Automatic ETO Sterilizer Systems: Designed with robust analog push-buttons and manual switchgear integrated directly into the control panel fascia for straightforward, operator-guided cycle execution.

 

  • Fully Automatic PLC-HMI ETO Sterilizer Systems: Advanced, microprocessor-driven units featuring a high-definition touchscreen HMI interface for automated recipe selection, real-time parameter tracking, and error-free batch processing.

Technical Specification of 4 Cubic Feet EO Gas Sterilizer

Model

AETOS – 2.6

AETOS – 4.5

AETOS – 8

Working Capacity in Cu. Ft.

2.6

4.5

8

Working Volume

70 Liters

125 Liters

200 Liters

Chamber Size

12” (W) x 12” (H) x 32”

 

12” (W) x 12” (H) x 54” (D) OR

15” (W) x 15” (H) x 36” (D)

20” (W) x 18” (H) x 38” (D) OR

16” (W) x 16” (H) x 54” (D)

Sterilant Gas

40 grams cartridge

100 grams cartridge

170 grams cartridge

Sterilization Cycle

Warm & Cold Cycles are possible.

Warm & Cold Cycles are possible.

Warm & Cold Cycles are possible.

Aeration

In-built aeration facility provided.

In-built aeration facility provided.

In-built aeration facility provided.

Utility

Compressed Air (100 psig)

Compressed Air (100 psig)

Compressed Air (100 psig)

Power Supply

1 K.W.

2 K.W.

2.5 K.W.

Power Voltage

220 volts, Single Phase, 50 Hertz

220 volts, Single Phase, 50 Hertz

220 volts, Single Phase, 50 Hertz

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.

Types of Sterilization Equipment

Applications of Sterilization Equipment

Benefits of 4 Cubic Feet EO Gas Sterilizer

Safely sterilizes heat- and moisture-sensitive items that steam autoclaves would damage.

EO gas effectively reaches inside lumens, packaging, and intricate device designs.

Ideal for space-limited environments while delivering professional results.

FDA-cleared systems like the EOGas 4 help facilities meet strict infection control and safety standards.

Reduced EO consumption and optimized cycles support cost-effective daily use.

Key Features of 4 Cubic Feet EO Gas Sterilizer

  • Chamber Size: 3.6–4 cubic feet (compact tabletop design).

 

  • Cycle Time: As fast as 3.5 hours (including aeration) at 50°C; options for 30°C cycles up to 5 hours.

 

  • Gas Efficiency: Uses only 17.6 grams of EO per cycle (90% less than many competitors), with unit-dose cartridges and gas-impermeable bags—no large external tanks needed.

 

  • Safety Features: Active aeration in the chamber eliminates post-cycle transfer; built-in purge probe for biological indicators; minimal installation (just a 2.6 cm PVC hose to outside).

 

  • Compatibility: Cleared for terminal sterilization of complex devices like duodenoscopes and colonoscopes; works with wraps.

 

  • Process Phases: Air removal, EO injection/humidity conditioning, exposure dwell, and gas purge—aeration ensures items are safe for immediate use.

FAQ for 4 Cubic Feet EO Gas Sterilizer

It is specifically intended for heat- and moisture-sensitive items that cannot withstand steam autoclaving, including endoscopes, implants, multi-lumen instruments, catheters, complex plastic components, disposable syringes, IV infusion sets, urine collection bags, surgical kits, electronics, optics, rubber items, and certain food/agricultural products such as spices or packaged grains.

The process generally includes preconditioning (humidification), air removal by vacuum, injection of EO gas (often mixed with CO₂ or N₂) followed by an exposure/dwell period, and then purge plus active aeration to remove residual gas. Total cycle times are commonly in the range of 4–8 hours, with some configurations achieving as little as about 3.5 hours including aeration at higher temperatures.

EO sterilization runs at low temperatures (typically 30–50 °C or ambient to mild heat). This prevents thermal distortion, moisture damage, or degradation of delicate materials that would be harmed by high-heat steam or dry-heat methods.

Yes, in-built aeration is provided. After EO exposure, residual gas must be thoroughly removed so that sterilized items meet safety limits (e.g., OSHA/EPA residual exposure guidelines) and are ready for immediate or near-term use without separate off-gassing rooms.

Systems are offered in semi-automatic versions (analog push-buttons and manual controls) and fully automatic PLC-HMI versions with touchscreen interfaces for recipe selection, real-time parameter monitoring, batch tracking, and minimal operator intervention.

Product-contact surfaces and internal piping are typically fabricated from high-grade AISI 304 or 316 stainless steel for corrosion resistance and easy cleaning. Additional features commonly include explosion-proof design considerations, leak detection, automatic shutoffs, pneumatically actuated valves, and the use of inert diluents to reduce flammability risk.

It generally requires compressed air at about 100 psig and operates on single-phase power (commonly 220 V / 50 Hz, with power draw around 2 kW for the 4.5 cu ft model). Voltage can often be adjusted to local standards. Gas is supplied via unit-dose cartridges (e.g., 100-gram cartridges for the relevant model) rather than large external tanks.

It is suited to pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries, as well as hospitals, outpatient clinics, research laboratories, dental practices, and veterinary facilities that need reliable low-temperature terminal sterilization of moderate volumes of heat-sensitive goods.

Comprehensive qualification packages (IQ, OQ, and DQ protocols) can be supplied as optional deliverables to support regulatory compliance. The technology is designed to deliver validated sterilization cycles and is referenced in the context of hospital-grade sterility and relevant standards for EO processes.

Countries We Export to

United States | Canada | Mexico | Brazil | Argentina | Chile | Colombia | Peru | Germany | United Kingdom | France | Italy | Spain | Netherlands | Belgium | Switzerland | Sweden | Austria | Denmark | Norway | Poland | Finland | Czech Republic | Hungary | Portugal | Ireland | Greece | Slovakia | Romania | Bulgaria | China | Japan | India | South Korea | Indonesia | Vietnam | Thailand | Malaysia | Philippines | Singapore | Bangladesh | Pakistan | Saudi Arabia | United Arab Emirates | Israel | Turkey | Iran | Qatar | Kuwait | South Africa | Nigeria | Egypt | Algeria | Morocco | Kenya | Ghana | Tunisia | Australia | New Zealand | Russia | Ukraine | Belarus | Kazakhstan | Taiwan | Hong Kong | South Sudan | Uzbekistan | Oman | Jordan | Bahrain | Sri Lanka | Myanmar | Lebanon | Mongolia | Ethiopia | Libya | Angola | Zambia | Zimbabwe | Mozambique | Ivory Coast | Senegal | Uganda | Tanzania | Botswana | Ecuador | Venezuela | Bolivia | Paraguay | Uruguay | Trinidad and Tobago | Panama | Guatemala | Costa Rica | Honduras | El Salvador | Nicaragua | Dominican Republic | Haiti | Cuba

Partner with Industry Experts

Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.

Countries We Export to

Algeria | Angola | Argentina | Australia | Austria | Bahrain | Bangladesh | Belarus | Belgium | Bolivia | Botswana | Brazil | Bulgaria | Canada | Chile | China | Colombia | Costa Rica | Cuba | Czech Republic | Denmark | Dominican Republic | Ecuador | Egypt | El Salvador | Ethiopia | Finland | France | Germany | Ghana | Greece | Guatemala | Haiti | Honduras | Hong Kong | Hungary | India | Indonesia | Iran | Ireland | Israel | Italy | Ivory Coast | Japan | Jordan | Kazakhstan | Kenya | Kuwait | Lebanon | Libya | Malaysia | Mexico | Mongolia | Morocco | Mozambique | Myanmar | Netherlands | New Zealand | Nicaragua | Nigeria | Norway | Oman | Pakistan | Panama | Paraguay | Peru | Philippines | Poland | Portugal | Qatar | Romania | Russia | Saudi Arabia | Senegal | Slovakia | Singapore | South Africa | South Korea | South Sudan | Spain | Sri Lanka | Sweden | Switzerland | Taiwan | Tanzania | Thailand | Trinidad and Tobago | Tunisia | Turkey | Uganda | Ukraine | United Arab Emirates | United Kingdom | United States | Uruguay | Uzbekistan | Venezuela | Vietnam | Zambia | Zimbabwe

Partner with Industry Experts

Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.

Adinath International manufactures high-precision vial powder filling machines and complete packaging lines, providing reliable, hygienic, and efficient solutions for global pharmaceutical industries.

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