There are ways to open classroom windows to reduce the spread of covid-19 without making rooms too cold, but many teachers in England are unsure how best to ventilate their rooms.
at the University of Cambridge. “You want to crack open the high-level windows just a small amount,” says Fitzgerald, who co-founded a ventilation company based on his research. “That’s how you provide adequate levels of fresh air in space while making sure the room is not too cold,” he says.“If there are plenty of teachers who don’t know the best way to ventilate their classrooms, this is the time we should be telling them because we’re in the depth of winter,” says Fitzgerald.
A major issue that schools have faced is that many windows, especially those high up, have been painted shut during refurbishments. Fitzgerald says fixing these should be prioritised.monitor isn’t necessarily bad. “Our modelling suggests 1500ppm is adequate in terms of daily averages,” he says. What this means is that, providing enough action is taken to prevent levels from climbing higher, there is no need to panic if a monitor is giving a red reading.
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