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HEPA filter in use during a safety classroom training session
Particles of ~ 0.3 μm are the hardest to catch. The critical particle diameter is ~ 0.3 μm. Reason why 0.3 μm is the Most Penetrating Particle Size (MPPS) in standards for HEPA filters in view of the CERN COVID-19 related health and safety measures.
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2020
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| Acceso en línea: | http://cds.cern.ch/record/2745134 |