Wind-Driven Roof Turbines: A Novel Way to Improve Ventilation for TB Infection Control in Health Facilities
Helen Cox, Rod Escombe, Cheryl McDermid, Yolanda Mtshemla, Tim Spelman, Virginia Azevedo, Leslie London
PLoS One | PUBLIC LIBRARY SCIENCE | Published : 2012
OBJECTIVE: Tuberculosis transmission in healthcare facilities contributes significantly to the TB epidemic, particularly in high HIV settings. Although improving ventilation may reduce transmission, there is a lack of evidence to support low-cost practical interventions. We assessed the efficacy of wind-driven roof turbines to achieve recommended ventilation rates, compared to current recommended practices for natural ventilation (opening windows), in primary care clinic rooms in Khayelitsha, South Africa. METHODS: Room ventilation was assessed (CO₂ gas tracer technique) in 4 rooms where roof turbines and air-intake grates were installed, across three scenarios: turbine, grate and window clo..View full abstract
This work was funded by Medecins sans Frontieres. Staff from Medecins sans Frontieres were involved in study design, data collection and analysis, manuscript preparation and decision to publish. This work was also assisted by an award from the Jack and Robert Smorgon Foundation in Australia, who had no role in study design, data collection and analysis, manuscript preparation and decision to publish.