11.07.2021: Study: Simple window ventilation better than expensive air filters
Scientists at the Max Planck Institute for Chemistry in Mainz, Germany, have found in a new study on containing the Covid 19 pandemic and increasing air quality in classrooms that normal window ventilation supported by simple technical aids such as fans and extractor bonnets is superior to expensive filter systems. It works quite simply: fresh, cool air enters the classroom through a tilted window, the warm air…