Gregory's Server"Air purifiers of various sizes and types were placed in two of the city's daycare centres during cold and flu seasons.
The initial results from the first year of research are promising, according to researcher Enni Sanmark, from HUS Helsinki University Hospital.
"Children were clearly less sick in daycare centres where air purification devices were used — down by around 30 percent," Sanmark explained."
@harold Would likely work for adults as well