Background
Air hygiene is critical in high-risk medical environments such as operating theatres and intensive care units (ICUs). Even minimal contamination in HVAC systems can endanger patients with weakened immune systems and compromise surgical safety.
At a major hospital in Athens, inspections revealed heavy contamination in the HVAC systems serving operating theatres and ICUs. Laboratory analysis showed significant microbial load and particulates, making urgent remediation necessary.
The challenge
The greatest challenge was not just cleaning but proving results with transparency. Many companies in the market use in-house monitoring devices, sometimes even equipment carrying ISO certification. However, ISO-labeled instruments do not guarantee objectivity when testing is performed internally. Results can be manipulated to present systems as extremely contaminated before and perfectly clean afterwards, undermining trust.
BSM Tech takes a radically different approach. All pre- and post-cleaning measurements are performed and certified by an independent accredited laboratory. This ensures full transparency, objective verification, and compliance with NADCA standards, leaving no room for misrepresentation.
The remediation process
The process began with independent laboratory sampling before intervention, establishing contamination baselines.
BSM Tech then applied NADCA-certified methods, including high-power negative pressure systems, HEPA filtration, and medical-grade disinfection techniques. Contaminants, mold, and microbial colonies were eliminated safely and effectively.
After cleaning, the same independent body carried out post-remediation testing. Results confirmed dramatic microbial reduction and full compliance with international hygiene standards for critical medical environments.
The outcome
The hospital received a full technical report, including NADCA certification and third-party laboratory results, proving objective restoration of safe air quality. Operating theatres and ICUs were restored to safe conditions, ready for use.
This independent validation distinguished BSM Tech from competitors who rely on questionable internal testing, reinforcing credibility and client confidence.
Conclusion
HVAC cleaning and disinfection in operating theatres and ICUs is a life-critical service. Only NADCA standards combined with independent laboratory verification can guarantee true reliability. BSM Tech is the only company in Greece consistently applying this rigorous approach, ensuring transparent, certified, and trustworthy results.