![Assessing the effect of beard hair lengths on face masks used as personal protective equipment during the COVID-19 pandemic | Journal of Exposure Science & Environmental Epidemiology Assessing the effect of beard hair lengths on face masks used as personal protective equipment during the COVID-19 pandemic | Journal of Exposure Science & Environmental Epidemiology](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41370-021-00337-1/MediaObjects/41370_2021_337_Fig1_HTML.png)
Assessing the effect of beard hair lengths on face masks used as personal protective equipment during the COVID-19 pandemic | Journal of Exposure Science & Environmental Epidemiology
![OSHA Technical Manual (OTM) - Section VIII: Chapter 2 | Occupational Safety and Health Administration OSHA Technical Manual (OTM) - Section VIII: Chapter 2 | Occupational Safety and Health Administration](https://www.osha.gov/sites/default/files/otm_viii_2fig01.gif)
OSHA Technical Manual (OTM) - Section VIII: Chapter 2 | Occupational Safety and Health Administration
![Biology | Free Full-Text | Facial Hair Decreases Fit Factor of Masks and Respirators in Healthcare Providers Biology | Free Full-Text | Facial Hair Decreases Fit Factor of Masks and Respirators in Healthcare Providers](https://www.mdpi.com/biology/biology-10-01031/article_deploy/html/images/biology-10-01031-g001.png)
Biology | Free Full-Text | Facial Hair Decreases Fit Factor of Masks and Respirators in Healthcare Providers
Protocol of a prospective comprehensive evaluation of an elastic band beard cover for filtering facepiece respirators in healthcare | PLOS ONE
![Under-mask beard covers achieve an adequate seal with tight-fitting disposable respirators using quantitative fit testing - ScienceDirect Under-mask beard covers achieve an adequate seal with tight-fitting disposable respirators using quantitative fit testing - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0195670122001694-gr1.jpg)
Under-mask beard covers achieve an adequate seal with tight-fitting disposable respirators using quantitative fit testing - ScienceDirect
![OSHA Releases a Letter of Interpretation to Clarify OSHAs Standards for Respiratory Protection Against Covid-19 for Employees with Religiously Mandated Facial Hair - Red On line (COM) OSHA Releases a Letter of Interpretation to Clarify OSHAs Standards for Respiratory Protection Against Covid-19 for Employees with Religiously Mandated Facial Hair - Red On line (COM)](https://www.red-on-line.com/app/uploads/sites/2/2022/01/man-gd122d8f54_1920.jpg)
OSHA Releases a Letter of Interpretation to Clarify OSHAs Standards for Respiratory Protection Against Covid-19 for Employees with Religiously Mandated Facial Hair - Red On line (COM)
![This guide to OSHA approved facial hair while wearing a respirator looks like a style guide for Ron Swanson : r/funny This guide to OSHA approved facial hair while wearing a respirator looks like a style guide for Ron Swanson : r/funny](https://i.redd.it/0t9zuf8oe3ty.png)