NHS urges staff to shave beards in fight against coronavirus | ITV News
Facial hair and respirator fit | 2016-07-24 | Safety+Health
Under-mask beard cover (Singh Thattha technique) for donning respirator masks in COVID-19 patient care - ScienceDirect
NHS trust asks staff to shave off beards so coronavirus masks will fit | UK News | Sky News
The CDC Has a Shockingly Robust Vocabulary for Facial Hairstyles | GQ
How does facial hair affect half mask fit? - YouTube
The importance of being clean shaven - Full Support HealthcareFull Support Healthcare
Respirator for Beards | Full Face Respirator for Beards & Facial Hair
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