FFP2 masks: Head loops usually better than ear-loop fastenings

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How well an FFP2 or N95 mask protects against coronavirus depends not only on the filter material used, but above all on how tightly it fits on the face. The best filter in the world is of no use if the air can flow in and out more or less unhindered through numerous gaps in the cheek or nose area. Models with adjustable straps that are fastened behind the head have advantages over the more common masks with ear loops, as Peter Paszkiewicz from the Institute for Occupational Safety and Health of the German Social Accident Insurance explains. FFP2 masks with ear loops often fit too loosely, whi…

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