Displacement ventilation is not worth the risk

 

The main purpose of OR ventilation is to protect patients and staff from harmful microorganisms. Today, this is typically achieved in three ways – through laminar airflow, turbulent airflow or displacement ventilation.

The illustration below shows how a displacement ventilation system can be configured in an operating room, and offers clues why it is ineffective in clinical environments.

As the air rises, so does the risk of contamination. Studies* show that displacement systems yield “two- to threefold higher bacterial counts in areas important for surgical asepsis.” In our opinion, the risks associated with displacement ventilation in ORs are unacceptable.

For more information on what really works in operating environments, please click on the following links.

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* https://www.ncbi.nlm.nih.gov/pubmed/8999051