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Cloth, N95, N99 Or Surgical Mask – Which Is The Best For Air Pollution?

When it comes to protecting ourselves from the toxic air masks are the most effective and simple way to do so Our expert ...
phillyvoice.com

Evidence shows that, yes, masks prevent COVID-19 – and surgical masks are the way to go

Do masks work? And if so, should you reach for an N95, a surgical mask, a cloth mask or a gaiter? Over the past year and a half, researchers have produced a lot of laboratory, model-based and ...