The mask dilemma: unmasking the myths and facts

Varsha Narayanan


Coronavirus 2019 (COVID-19) has been spreading across the globe in 2020 with most countries being affected significantly in terms of the number of infected cases, morbidity and mortality, as well as health care and economic burden. Currently the most important individual and community measures for curtailing disease transmission are social distancing, hand sanitization and wearing of masks in public. It is important to advocate wearing masks in an effective and balanced manner and dispense supportive scientific evidence as well as practical guidelines and information in the community. Till the event of mass vaccination for COVID being available, improving the awareness, compliance and acceptance of the people towards proper wearing of a face mask when in public places, can be the most effective way for several countries to control transmission of COVID.



COVID, Masks, Community spread, Social distancing, Pandemic

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Feng S, Shen C, Xia N, Song W, Fan M, Cowling BJ. Rational use of face masks in the COVID-19 pandemic. The Lancet Respiratory Medicine. Comment. 2020;8(5):434-36.

World Health Organization- Coronavirus Disease (COVID-19): Masks. Updated 09 Oct 2020. Accessed on 01 November, 2020.

Centers for Disease Control and Prevention- Coronavirus Disease (COVID-19): Hand Hygiene Recommendations. Updated 17, May 2020. Accessed on 01 November, 2020.

World Health Organization. Advice on the use of masks in the context of COVID-19, Interim guidance, 5 June 2020. Available at: https://www.who. int/publications/i/item/advice-on-the-use-of-masks-in-the-community-during-home-care-and-in-healthcare-settings-in-the-context-of-the-novel-coronavirus-(2019-ncov)-outbreak. Accessed on 01 November, 2020.

Wang Y, Tian H, Zhang L, Zhang M, Guo D, Wu W et al. Reduction of secondary transmission of SARS-CoV-2 in households by face mask use, disinfection and social distancing: a cohort study in Beijing, China. BMJ Global Health. 2020;5:e002794.

Worby CJ, Chang HH. Face mask use in the general population and optimal resource allocation during the COVID-19 pandemic. Preprint. medRxiv.

Cheng VC, Wong SC, Chuang VW, So SY, Chen JH, Sridhar S et al. The role of community-wide wearing of face mask for control of coronavirus disease 2019 (COVID-19) epidemic due to SARS-CoV-2. J Infect. 2020;81(1):107-114.

Eikenberry SE, Mancuso M, Iboi E, Phan T, Eikenberry K, Kuang Y et al. To mask or not to mask: Modeling the potential for face mask use by the general public to curtail the COVID-19 pandemic. Infectious Disease Modelling. 2020;5:293-308.

Li T, Liu Y, Li M, Qian X, Dai SY (2020) Mask or no mask for COVID-19: A public health and market study. PLoS ONE. 2020;15(8):e0237691.

Stutt Richard O. J. H, Retkute R, Bradley M, Gilligan CA, Colvin J. A modelling framework to assess the likely effectiveness of facemasks in combination with ‘lock-down’ in managing the COVID-19 pandemic. Proc R Soc A. 2020;47620200376.

Lyu W, Wehby GL. Community Use of Face Masks And COVID-19: Evidence From A Natural Experiment Of State Mandates In The US. Health Affairs. 2020;39(8):1419-25.

Mitze T, Kosfeld R, Rode J, Wälde K. (2020) Face Masks Considerably Reduce COVID-19 Cases in Germany: A Synthetic Control Method Approach. IZA – Institute of Labor Economics, Contract No.: IZA DP No. 13319. Available at: https://www.iza. org/publications/dp/13319/face-masks-considerably-reduce-COVID-19-cases-in-germany-a-synthetic-control-method-approach. Accessed on 01 November, 2020.

McMillan B. Study: mask mandates shown to significantly reduce spread of COVID-19. SFU News 06, Oct 2020. Available at: sfunews/stories/2020/10/study--mask-mandates-shown-to-significantly-reduce-spread-of-cov.html. Accessed on 01 November, 2020.

Chiu NC, Chi H, Tai YL, Peng CC, Tseng CY, Cheng CC et al. Impact of Wearing Masks, Hand Hygiene, and Social Distancing on Influenza, Enterovirus, and All-Cause Pneumonia During the Coronavirus Pandemic: Retrospective National Epidemiological Surveillance Study. J Med Internet Res. 2020;22(8):e21257.

Tcharkhtchi A, Abbasnezhad N, Seydani MZ, Zirak N, Farzaneh S, Shirinbayan M. An overview of filtration efficiency through the masks: Mechanisms of the aerosols penetration. Bioactive Materials, Jan 2021;6(1):106-122.

Liao L, Xiao W, Zhao M, Yu X, Wang H, Wang Q et al. Can N95 Respirators Be Reused after Disinfection? How Many Times?. ACS Nano. 2020;14(5):6348-6356.

Rengasamy S, Miller A, Eimer BC, Shaffer RE. Filtration Performance of FDA-Cleared Surgical Masks. J Int Soc Respir Prot. 2009;26(3):54-70.

Sangkham S. Face mask and medical waste disposal during the novel COVID-19 pandemic in Asia. Case Studies in Chemical and Environmental Engineering. 2020;2:100052.

Centers for Disease Control and Prevention- Coronavirus Disease (COVID-19): Considerations for Wearing Masks. 2020. Available at: Accessed on 01 November, 2020.

Centers for Disease Control and Prevention- Coronavirus Disease (COVID-19): Scientific Brief: Community Use of Cloth Masks to Control the Spread of SARS-CoV-2. 2020. Available at: Accessed on 01 November, 2020.

Konda A, Prakash A, Moss GA, Schmoldt M, Grant GD, Guha S. Aerosol Filtration Efficiency of Common Fabrics Used in Respiratory Cloth Masks. ACS Nano 2020;(14)5:6339-47.

Humphreys J. The importance of wearing masks in curtailing the COVID-19 pandemic. Journal of Family Medicine and Primary Care. 2020;9(6):2606-07.

Royo-Bordonada MA, García-López FJ, Cortés F, Zaragoza GA. Face masks in the general healthy population. Scientific and ethical issues. Gac Sanit. 2020;S0213-911.

Szepietowski JC, Matusiak M, Szepietowska M, Krajewski PK, Bialynicki-Birula R. Face Mask-induced Itch: A Self-questionnaire Study of 2,315 Responders During the COVID-19 Pandemic. Acta Derm Venereol. 2020;100:adv00152.

Scheid JL, Shannon P. Lupien SP, Ford GS, West SL. Commentary: Physiological and Psychological Impact of Face Mask Usage during the COVID-19 Pandemic. Int J Environ Res Public Health. 2020;17:6655.

World Health Organization- Coronavirus Disease (COVID-19): Coronavirus disease (COVID-19) advice for the public: Mythbusters. Available at:,one%20meter%20from%20others. Accessed on 01 November, 2020.

COVID-19 in India: the dangers of false optimism. The Lancet editorial. 2020;396(10255):867.