The eagerly awaited finding comes from the first randomised trial of putting HEPA filter machines into classrooms
Source: Schools cut covid-19 sick days by 20 per cent using HEPA air filters
wonder what the costs are; could it be argued that a workplace MUST provide adequate air filtration? also need to ask Paul about how employment contracts have changed it af if at all to ensure wft wfh is minimized or eliminted, whereas was it before covid-19, probably just assumned 5 x 8hrs is spent aqt the empl;oyers location, as is the way.,
seems like one of those “what if all we did was make the air cleaner for school children” things:
