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Make Your Mask More Effective By Inserting a Vacuum Cleaner Filter

We all know that wearing a mask can help reduce the spread of coronavirus, but how effective is your mask? Not everyone has access to the best virus-thwarting masks — including N99, N95 and surgical masks — but the homemade or store bought masks most of the general public wear can be adapted to be almost as effective as the N99 and N95 by simply inserting a vacuum cleaner filter into the mask’s filter pocket. Source: Science Daily July 8, 2020