@jwildeboer
Well, #Buschmann could obviously read the hundreds of studies that were carried out in the occupational health sector over decades and that laid the foundations for standards like #FFP1 to #FFP3, #K95 and others all over the world 🤓
But he'd probably either argue that their results can't be considered outside of workplaces because of the different laws of physics that apply in real life - or just (willfully) fail to understand the results at all... 🤬