DIY Air Purifiers for Teachers: Free Designs & Step-by-Step Instructions Online

If you’re a teacher returning to the classroom, you may want some extra COVID protection. Thankfully, some researchers and practitioners have created “a design for an in-room air purifier which can remove a significant amount of COVID-19 virus from the air.” “The design involves making a ‘box’ out of four 20″ MERV-13 filters (the ‘sides’ … Read more