New South Wales students have gone back to school this week with the wind blowing through open classroom windows in a bid to contain the spread of COVID-19.19,000 air purifiers have been ordered for classrooms where windows can't be openedThis step is based on education department modelling that experts say needs to be validated, with outbreaks in schools "inevitable".
Woolcock Insitute's head of the respiratory and environmental group, Guy Marks, said the model could be tested by measuring carbon dioxide levels. "My feeling is that there would still be a need, probably in all schools, to be able to take some measurements, not necessarily permanently, at least at some point in time to assess the adequacy of ventilation.""This is really where measuring, using carbon dioxide, becomes extremely important, because you can be modelling these things, you can calculate these things," she said.
Wouldn't the wind blow the virus around Bit odd to me
118 schools in NSW have already had covid cases this term so it's fairly obvious opening windows isn't enough. An appalling lack of duty of care to staff and our kids by nsw govt, purposefully exposing them and their families to a virus that causes significant debility in many.
Schools like pubs and clubs and offices are breeding grounds for viral and bacterial transmission, we have know that for a long time,. We have also know that untreated conditioned air in enclosed spaces are a viral vector.
To get proper ventilation, windows / doors should be opened on opposite sides of the classroom. I teach in Europe with CO2 monitors and without cross ventilation the CO2 concentration remains high.