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Air purifiers can actually do more harm than good during the pandemic – as a new study shows, they could help spread COVID-19 droplets in confined spaces.
Researchers at the University of Nicosia in Cyprus conducted the study, “Fluid Physics,” which was released on Tuesday to show what would happen if a person coughed in a crowded elevator.
“The air purifier reduces the dispersion of droplets but does not eliminate it. The air intake integrated in the purification equipment induces a flow circulation which can be added to the transport of the contaminated saliva droplets in the cabin ”, wrote the authors Talib Dbouka and Dimitris Drikakis.
“The results of this study are relevant for all confined spaces, including small rooms in residential or commercial facilities, parking lots, shops, as well as an airplane cabin, submarines and spacecraft. “, added the scientists.
They also suggested that “future ventilation and purification systems should aim to reduce AVT [airborne virus transmission] thanks to the minimization of the dispersion of the droplets. “
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