Read what you linked.....I didn't read all of it and stopped as soon as I read the following. I'm not pushing masks but there's as much BS against them as there is for them. Quote below directly from the article you linked. She states it as diminishing the viral load in the air in a healthcare setting. It would do the same out of a health care setting.
But it’s a good option for patients to wear in healthcare settings where they-especially for those who are experiencing symptoms-to what I would call diminish the viral load. Basically, decrease the amount of particles, infectious particles in the air in a healthcare setting.