62,734
edits
Changes
→Summary by mask type
| Cloth masks with filter || "Adding a polypropylene filter to a two-layer cloth mask can increase filtration efficiency from 35% to nearly 70%."<ref name="healthgrades.com"/> ||
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| Neck gaiters and balaclavas || || "Neck Synthetic fabric, which is often used, isn't as effective as cotton in preventing the spread of small particles. Moreover, neck gaiters made of synthetic fleece may do more harm than good because can be harmful as they essentially aerosolize the wearer's respiratory droplets."<ref name="healthgrades.com"/>
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| Disposable surgical mask || ||
