Use of air purifiers at two daycare centres in Helsinki led to a reduction in illnesses and absences among children and staff, according to preliminary findings of a new study led by E3 Pandemic Response.
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.
The air purifiers were changed at two daycare centres serving as a control in the experiment, in order to rule out the effect that possible epidemic fluctuations could have on the results. The study’s next phase will continue until April.