top | item 25769271 One Mask Is Good. Would Two Be Better? 3 points| l_davis | 5 years ago |nytimes.com 1 comment order hn newest EGreg|5 years ago I have been saying that two thin comfortable masks layered over each other is as good as an N95 for blocking the airflow going out. And that is the job of the masks!
EGreg|5 years ago I have been saying that two thin comfortable masks layered over each other is as good as an N95 for blocking the airflow going out. And that is the job of the masks!
EGreg|5 years ago