Face mask myths and truths behind them
In attempts to understand the truth behind the effectiveness of face masks during COVID-19, a newscaster and scientist will attempt to debunk various myths surrounding masks.
All characters portrayed in this video are figments of our imagination. Any resemblance of these characters to real life is coincidental.
This video was created by McMaster Demystifying Medicine students Jordan Chin, Saba Bhatti, and Viktoriya Bilyk.
Copyright McMaster University 2020
SUBSCRIBE AND FOLLOW US FOR MORE CONTENT: Youtube: @Demystifying Medicine
Twitter: @McMasterDMS- Website:
Podcasts: @MacDemystMed- Instagram: @demystifying_medicine
Cheng, K. K., Lam, T. H., & Leung, C. C. (2020). Wearing face masks in the community during the COVID-19 pandemic: altruism and solidarity. The Lancet. S0140-6736(20)30918-1
Chu, D. K., Akl, E. A., Duda, S., Solo, K., Yaacoub, S., Schünemann, H. J., & Hajizadeh, A. (2020). Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis. The Lancet. doi: (20)31142-9
Clase, C., Fu, E., & Jesus, J. (2020). COVID-19 masks FAQ: How can cloth stop a tiny virus? What's the best fabric? Do they protect the wearer? Retrieved October 22, 2020, from -virus-whats-the-best-fabric-do-they-protect-the-wearer/
Cowling, B. J., Zhou, Y. D. K. M., Ip, D. K. M., Leung, G. M., & Aiello, A. E. (2010). Face masks to prevent transmission of influenza virus: a systematic review. Epidemiology & infection, 138(4), 449-456.
Dbouk, T., & Drikakis, D. (2020). On respiratory droplets and face masks. Physics of Fluids,
32(6), 063303. /
Feng, S., Shen, C., Xia, N., Song, W., Fan, M., & Cowling, B. J. (2020). Rational use of face masks in the COVID-19 pandemic. The Lancet Respiratory Medicine, 8(5), 434-436. doi: (20)30134-X
Macedo, B. R., Diniz Silva, F., Pinaffi, J. V., Rego, F. M. P., & Ferreira, J. C. (2018). Influence of
non-invasive ventilation mask on CO2 washout and synchrony in a lung model simulating chronic obstructive pulmonary disease and hypercapnia. In C47. CRITICAL CARE: LOCOMOTIVE BREATH-NON-CONVENTIONAL MECHANICAL VENTILATION, NIV, HIGH FLOW, AND ECMO (pp. A5096-A5096). American Thoracic Society
Qaseem, A., Etxeandia-Ikobaltzeta, I., Yost, J., Miller, M. C., Abraham, G. M., Obley, A. J., Forciea, M., Jokela, J. A., & Humphrey, L. L. (2020). Use of N95, Surgical, and Cloth Masks to Prevent COVID-19 in Health Care and Community Settings: Living Practice Points From the American College of Physicians (Version 1). Annals of internal medicine.
Verma, S., Dhanak, M., & Frankenfield, J. (2020). Visualizing the effectiveness of face masks in obstructing respiratory jets. Physics of Fluids, 32(6), 061708. doi:
World Health Organization (2020). Advice on the use of masks in the context of COVID-19.
Interim Guidance - World Health Organization.