Health
Schools cut covid-19 sick days by 20 per cent using HEPA air filters
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
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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
University students tend to get lower grades if their classes and lectures begin early in the morning, because they struggle to wake up early enough to attend them