Particulate filter mask smart with Klimaventil®, FFP3 NR D, 2505 | Protection against particulate | Respiratory protection | Occupational Safety and Personal Protection | Labware | Carl Roth - International
![FFP3 masks for hospital staff cuts COVID-19 infections by up to 100 per cent | BBC Science Focus Magazine FFP3 masks for hospital staff cuts COVID-19 infections by up to 100 per cent | BBC Science Focus Magazine](https://images.immediate.co.uk/production/volatile/sites/4/2021/06/GettyImages-1295653275-crop-f4bf54b.jpg)
FFP3 masks for hospital staff cuts COVID-19 infections by up to 100 per cent | BBC Science Focus Magazine
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