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Maintaining Cleanroom Environments in Hospital Operating Rooms

Hospital operating clean rooms can be considered specialized cleanrooms due to the stringent contamination control requirements needed during surgery. Maintaining a highly sterile environment is critical for infection prevention and patient safety. Hospital operating clean rooms utilize extensive air filtration, pressurization, architectural finishes and cleaning procedures to achieve cleanroom standards.


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Importance of Infection Control

Any pathogens introduced into open surgical sites can lead to dangerous infections. Cleanroom protocols minimize airborne microbes that increase infection risk.


Stringent Air Purity Standards

Hospital operating clean rooms must maintain ISO Class 5 air quality with less than 3,520 particles/m3 ≥ 0.5 μm diameter and just 20 particles/m3 ≥ 5.0 μm diameter.


Specialized HVAC Systems

Dedicated HEPA-filtered HVAC systems provide ultraclean air with 15-25 air changes per hour.


Key Aspects of Hospital operating clean room Design

Several important design elements enable proper OR cleanroom functionality:


Pressurization and Airflow

Positive pressurization inside the OR ensures airflow goes from clean to less clean areas, keeping contaminants out.


HEPA Filtration

99.97% of particles ≥ 0.3 μm diameter are removed by HEPA filters protecting surgical sites.


Humidity and Temperature Control

Conditions are tightly regulated to prevent microbe growth and maintain comfort.


Air Changes per Hour

Frequent total air replacements purge particulates and microorganisms. 20 air changes per hour is typical.


Critical Cleanroom Equipment for Hospital operating clean rooms

Cleanroom-compatible equipment is imperative for Hospital operating clean rooms, including:


LED Surgical Lighting

Recessed LED lighting provides bright, shadowless illumination without heat emission that could impact air density.


Automatic Doors

Interlocked doors prevent simultaneous opening that would disrupt differential pressures. Touchless sensors improve workflow.


Air Showers

Air showers remove contaminants from personnel and equipment entering the OR.


Cleanroom Wipe Dispensers

Mounted gauze wipe dispensers provide ready access to cleaning surfaces while minimizing lint particles.


Cleanroom Attire and Protocols in Hospital operating clean rooms

Doctors, nurses and staff must follow stringent cleanroom procedures:


Scrubs, Masks and Headgear

Covering hair and using face masks limits shed skin cells and microdroplet contaminants.


Sterile Gloves and Gowns

Impermeable sterile gowns and gloves worn in the OR protect the patient and keep surfaces clean.


Covering All Exposed Skin

Any exposed skin is thoroughly scrubbed and disinfected before gowning.


Entering Through Airlocks

Accessing the OR via an airlock passageway helps maintain cleanroom pressurization.


Maintaining and Monitoring the Hospital Operating Clean Room

Ongoing measures are necessary to uphold OR cleanliness:


Scheduled Certification

Cleanroom certification should be conducted every 6 months documenting ISO classification.


Real-Time Particle Monitoring

Continuous particle counters identify air purity levels at all times during surgeries.


Strict Cleaning Procedures

Daily disinfection using germicidal detergent maintains cleanliness between procedures. Weekly deep cleaning further decontaminates all surfaces.


Hospital Operating Clean Room Conclusion

The ultraclean environment required for safe invasive surgery is enabled by the cleanroom-level standards upheld in hospital operating rooms. Strict particulate and microbial control through air filtration, pressurization, architectural finishes, equipment, attire protocols and frequent cleaning maintains the stringent aseptic conditions needed for surgical site integrity and infection prevention. Consistently maintaining OR cleanrooms is critical for positive patient outcomes.


Hospital Operating Clean Room FAQs

Q: How often are OR cleanrooms recertified?

A: Best practice is to recertify OR cleanrooms every 6 months to validate proper ISO classification is maintained.


Q: What cleaning agents are used in OR cleanrooms?

A: EPA-registered germicidal detergents effective against healthcare pathogens are typically used for cleaning. Sterile water is used on any surfaces that may contact the patient.


Q: Can you have too many air changes per hour in an OR?

A: Yes, too many air changes can create disruptive laminar airflow. 15-25 air changes per hour is optimal for OR cleanrooms.


Q: Are visitors allowed in OR cleanrooms?

A: Visitors should be restricted from entering OR cleanrooms as they can unintentionally introduce contaminants. Only necessary medical staff should access.


Q: What particle size is of most concern in an OR cleanroom?

A: Particles 5 μm or larger have the highest risk for causing surgical site infections if contacting an open incision area.


Kwang Purification is proud to offer examples of a variety of our Clean Room projects below.  Class 100 Clean Room,  Biopharmaceutical Cleanroom,  Cleanroom Window,  Laboratory Clean Room,  Clean Room Solutions,  Cleanroom Fan Filter Unit,  Cleanroom Sandwich Panel.

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