use of air filters in schools to mitigate spread of Covid

[ahimsa]

Schools cut covid-19 sick days by 20 per cent using HEPA air filters

https://www.newscientist.com/articl...k-days-by-20-per-cent-using-hepa-air-filters/

(paywall, but first few sentences are visible)

Placing HEPA air filters into classrooms in the Bradford area of the UK reduced the number of covid-19-related absences among students by more than 20 per cent

Air filter machines put into a handful of UK schools reduced the number of covid-19-related sick days by more than 20 per cent, the first such randomised trial of the intervention has found.

HEPA filters, devices about the size of a tall kitchen waste bin, were placed in the classrooms of schools in the Bradford area. The results haven’t yet been published in a peer-reviewed journal, but one of the researchers revealed the 20 per cent fall …

 

[Sean]

Can't access the full article, but I hope they used a dummy filter arm as well. That would provide a clear answer either way.

 

[Amw66]

Air filtration works - who would have thought ?

https://twitter.com/user/status/1840804187908477059