From a Twitter thread by Dr. Claire J. Horwell, Director of International Volcanic Health Hazard Network (IVHHN), Professor at Duram Volcanology – “here's a short thread to answer the question: can you wear a disposable #facemask more than once? The answer is YES. Many manufacturers state that masks should be disposed of after 8 hours but this is not true. […] Unless a mask has become clogged full of particles in a very high exposure scenario (e.g. mining, construction) or the worker is in a contaminated front-line healthcare setting, it is still perfectly useable after 8 hours, unless it is broken.”
From a Twitter thread by Dr. Claire J. Horwell, Director of International Volcanic Health Hazard Network (IVHHN), Professor at Duram Volcanology – “here's a short thread to answer the question: can you wear a disposable #facemask more than once? The answer is YES. Many manufacturers state that masks should be disposed of after 8 hours but this is not true. […] Unless a mask has become clogged full of particles in a very high exposure scenario (e.g. mining, construction) or the worker is in a contaminated front-line healthcare setting, it is still perfectly useable after 8 hours, unless it is broken.”
https://twitter.com/claire_horwell/status/146640027013763072...