Five standard divider designs’ transmission properties were compared. Testing with a high-speed camera provided a bird’s-eye view of the transmission process; PIV measurements analyzed the transmission in more detail near the exposed person’s breathing zone, and concentrations in the breathing zone were measured to provide a quantitative assessment of the potential exposure. Specifically, the research came to the following conclusions about the social distancing divider singapore.
There was a 99% reduction in possible exposure in the breathing zone of the exposed person when a divider was used in a face-to-face arrangement. Even at a distance of more than 1 meter, the reflection constituted a significant threat to the exposed individual sitting next to the infector (i.e., side-by-side arrangement with a partition in front).
The staggered structure of the dividers allows for a 60% reduction in exposure to the breathing zone
The exposure decrease afforded by the side-by-side arrangement with a single divider in between might be enhanced by adding a second divider, doubling the lateral distance between the infector and the exposed individual. But beyond a certain amount of horizontal separation, the benefits of partitions diminish to nothing.
Particles between 0.25 and 1 micrometers in size dominated the transmissions that reached the respiratory zone of the exposed individual who was more than 1 m distant from the infector; these sizes are within the usual infectious size bins of the SARS-CoV2 virus.
a summary of the study’s findings. Furthermore, exposure at other locations in the room due to residual aerosols is not considered, even though it may be significant. Our analysis did not account for how the temperature differential between cough droplets and the surrounding air would impact evaporation or particle trajectory.