Testing face masks: Lab tests reveal the safest and most effective


CBC News in Canada shows how effective are face masks. Months into the coronavirus pandemic there are still no standards or regulations for consumer masks. So, they asked the University of Toronto to test more than 20 different masks. They reveal which are the most effective at keeping you safe from COVID-19, and which masks you should avoid.
Keep in mind, the N95 or Professional-Grade Medical Mask N95 respirators and other professional-grade medical masks are carefully sized to form a tight seal between the air outside and the face. They are designed to protect healthcare workers from droplets in the air. Respirators are certainly highly effective when professionally fitted.
Fabric masks are really recommended to prevent onward transmission in the general population in public areas, particularly where distancing is not possible, and in areas of community transmission. This could include the school grounds in some situations. Masks may help to protect others, because wearers may be infected before symptoms of certain illness appear. The policy on wearing a mask or so-called face covering should be in line with national or local guidelines. Where used, masks should be worn, cared for and disposed of indeed properly.
Good fabric masks should be made of 3 layers of fabric:
Inner layer of absorbent material, such as cotton.Middle layer of non-woven non-absorbent material, such as polypropylene.Outer layer of non-absorbent material, such as polyester or polyester blend.
Types of Face Coverings:
BandanaHomemade cloth maskT-shirt maskStore-bought cloth maskCloth masks with filterNeck gaiters and balaclavasDisposable surgical maskCone-style masksN95, KN95 and other respiratorsgas mask (a mask used to protect the wearer from inhaling airborne pollutants and toxic gases)

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