Operating Theatre Odor Control: Ventilation, Pressure, and Filtration Systems

Operating theatres employ multi-layered strategies to minimize odors and maintain sterility:

1. High-air-exchange ventilation – continuous fresh air inflow, contaminated air removal.
2. Negative pressure – air flows into the OR, preventing odor/contaminant escape.
3. HEPA filtration – removes bacteria, viruses, and particulate matter.
4. Advanced odor control – activated carbon, photocatalytic oxidation, or ozone generation in some facilities.
5. Rigorous cleaning/sterilization – regular disinfection of surfaces, equipment, floors.
6. Proper waste/fluid management – sealed containment, prompt disposal.
7. Staff training – strict aseptic technique and hygiene compliance.

These measures protect patients and staff while maintaining a controlled surgical environment.