Airflow

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Wearing a used mask could be worse than no mask amid COVID-19: study – New York Post

Post author By EvidenceNotFear
Post date 17 December 2020

Wearing a used mask could be more dangerous than not wearing one at all when it comes to warding off COVID-19, a new study has found.

They found that wearing a mask “significantly slows down” airflow, reducing a mask’s efficacy and making a person more susceptible to inhaling aerosols into the nose — where SARS-CoV-2 likes to lurk.

https://nypost.com/2020/12/16/wearing-a-used-mask-could-worse-than-no-mask-amid-covid-19-study/

Tags Airborne, Airflow, American Institute of Physics, California Baptist University, COVID-19, Face Masks, Filtration, Foreign Particles, Jinxiang Xi, Modelling, New York Post, Respiratory Tract, University of Massachusetts

Effects of mask-wearing on the inhalability and deposition of airborne SARS-CoV-2 aerosols in human upper airway – American Institute of Physics

Post author By EvidenceNotFear
Post date 15 December 2020

“It is natural to think that wearing a mask, no matter new or old, should always be better than nothing. Our results show that this belief is only true for particles larger than 5 micrometers, but not for fine particles smaller than 2.5 micrometers,” said author Jinxiang Xi.

The researchers found that wearing a mask with low (less than 30%) filtration efficiency can be worse than without.

https://web.archive.org/web/20201217105350/https://publishing.aip.org/publications/latest-content/the-mask-matters-how-masks-affect-airflow-protection-effectiveness/

Tags Airborne, Airflow, American Institute of Physics, California Baptist University, COVID-19, Face Masks, Filtration, Foreign Particles, Jinxiang Xi, Modelling, Respiratory Tract, University of Massachusetts