References
- Allen, J. G., and L. C. Marr. 2020. Recognizing and controlling airborne transmission of sars-cov-2 in indoor environments. Indoor Air. 30 (4):557–8. doi:https://doi.org/10.1111/ina.12697.
- Asadi, S., N. Bouvier, A. S. Wexler, and W. D. Ristenpart. 2020. The coronavirus pandemic and aerosols: Does covid-19 transmit via expiratory particles? Aerosol Sci. Technol. 54:1–638. doi:https://doi.org/10.1080/02786826.2020.1749229.
- Asadi, S., C. D. Cappa, S. Barreda, A. S. Wexler, N. M. Bouvier, and W. D. Ristenpart. 2020. Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities. Sci. Rep. 10 (1):15665. doi:https://doi.org/10.1038/s41598-020-72798-7.
- Azimi, P., D. Zhao, and B. Stephens. 2014. Estimates of hvac filtration efficiency for fine and ultrafine particles of outdoor origin. Atmos. Environ. 98:337–46. doi:https://doi.org/10.1016/j.atmosenv.2014.09.007.
- Bergman, M. S., X. He, M. E. Joseph, Z. Zhuang, B. K. Heimbuch, R. E. Shaffer, M. Choe, and J. D. Wander. 2015. Correlation of respirator fit measured on human subjects and a static advanced headform. J. Occup. Environ. Hygiene 12 (3):163–71. doi:https://doi.org/10.1080/15459624.2014.957832.
- Bergman, M. S., Z. Zhuang, D. Hanson, B. K. Heimbuch, M. J. McDonald, A. J. Palmiero, R. E. Shaffer, D. Harnish, M. Husband, and J. D. Wander. 2014. Development of an advanced respirator fit-test headform. J. Occup. Environ. Hyg. 11 (2):117–25. doi:https://doi.org/10.1080/15459624.2013.816434.
- Centers for Disease Control and Prevention. 2020. How to make masks. Accessed October 23, 2020. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-to-make-cloth-face-covering.html.
- Chia, P. Y., K. K. Coleman, Y. K. Tan, S. W. X. Ong, M. Gum, S. K. Lau, X. F. Lim, A. S. Lim, S. Sutjipto, P. H. Lee, et al. 2020. Detection of air and surface contamination by sars-cov-2 in hospital rooms of infected patients. Nat. Commun. 11 (1):2800. doi:https://doi.org/10.1038/s41467-020-16670-2.
- Chu, D. K., E. A. Akl, S. Duda, K. Solo, S. Yaacoub, H. J. Schünemann, D. K. Chu, E. A. Akl, A. El-Harakeh, A. Bognanni, et al. 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 395 (10242):1973–87. doi:https://doi.org/10.1016/S0140-6736(20)31142-9.
- Drewnick, F., J. Pikmann, F. Fachinger, L. Moormann, F. Sprang, and S. Borrmann. 2021. Aerosol filtration efficiency of household materials for homemade face masks: Influence of material properties, particle size, particle electrical charge, face velocity, and leaks. Aerosol Sci. Technol. 55 (1):63–79. doi:https://doi.org/10.1080/02786826.2020.1817846.
- El-Atab, N., N. Qaiser, H. Badghaish, S. F. Shaikh, and M. M. Hussain. 2020. Flexible nanoporous template for the design and development of reusable anti-covid-19 hydrophobic face masks. ACS Nano 14 (6):7659–65. doi:https://doi.org/10.1021/acsnano.0c03976.
- Fischer, E. P., M. C. Fischer, D. Grass, I. Henrion, W. S. Warren, and E. Westman. 2020. Low-cost measurement of face mask efficacy for filtering expelled droplets during speech. Sci. Adv. 6 (36):eabd3083. doi:https://doi.org/10.1126/sciadv.abd3083.
- Gupta, J. K., C.-H. Lin, and Q. Chen. 2010. Characterizing exhaled airflow from breathing and talking. Indoor Air. 20 (1):31–9. doi:https://doi.org/10.1111/j.1600-0668.2009.00623.x.
- Hadei, M., P. K. Hopke, A. Jonidi, and A. Shahsavani. 2020. A letter about the airborne transmission of sars-cov-2 based on the current evidence. Aerosol Air Qual. Res. 20 (5):911–4. doi:https://doi.org/10.4209/aaqr.2020.04.0158.
- Hinds, W. C. 1999. Aerosol technology: Properties, behavior, and measurement of airborne particles. New York: John Wiley & Sons.
- Howard, J., A. Huang, Z. Li, Z. Tufekci, V. Zdimal, H.-M. van der Westhuizen, A. von Delft, A. Price, L. Fridman, L.-H. Tang, et al. 2021. An evidence review of face masks against covid-19. Proc. Natl. Acad. Sci. USA. 118 (4):e2014564118. doi:https://doi.org/10.1073/pnas.2014564118.
- Hsiao, T.-C., H.-C. Chuang, S. M. Griffith, S.-J. Chen, and L.-H. Young. 2020. Covid-19: An aerosol’s point of view from expiration to transmission to viral-mechanism. Aerosol Air Qual. Res. 20:905–10. doi:https://doi.org/10.4209/aaqr.2020.04.0154.
- Jefferson, T., R. Foxlee, C. Del Mar, L. Dooley, E. Ferroni, B. Hewak, A. Prabhala, S. Nair, and A. Rivetti. 2008. Physical interventions to interrupt or reduce the spread of respiratory viruses: Systematic review. BMJ 336 (7635):77–80. doi:https://doi.org/10.1136/bmj.39393.510347.BE.
- Johnson, G. R., L. Morawska, Z. D. Ristovski, M. Hargreaves, K. Mengersen, C. Y. H. Chao, M. P. Wan, Y. Li, X. Xie, D. Katoshevski, et al. 2011. Modality of human expired aerosol size distributions. J. Aerosol Sci. 42 (12):839–51. doi:https://doi.org/10.1016/j.jaerosci.2011.07.009.
- Konda, A., A. Prakash, G. A. Moss, M. Schmoldt, G. D. Grant, and S. Guha. 2020a. Aerosol filtration efficiency of common fabrics used in respiratory cloth masks. ACS Nano 14 (5):6339–47. doi:https://doi.org/10.1021/acsnano.0c03252.
- Konda, A., A. Prakash, G. A. Moss, M. Schmoldt, G. D. Grant, and S. Guha. 2020b. Response to letters to the editor on aerosol filtration efficiency of common fabrics used in respiratory cloth masks: Revised and expanded results. ACS Nano. 14 (9):10764–70. doi:https://doi.org/10.1021/acsnano.0c04897.
- Lei, Z., J. Yang, Z. Zhuang, and R. Roberge. 2013. Simulation and evaluation of respirator faceseal leaks using computational fluid dynamics and infrared imaging. Ann. Occup. Hyg. 57 (4):493–506. doi:https://doi.org/10.1093/annhyg/mes085.
- Leung, N. H. L., D. K. W. Chu, E. Y. C. Shiu, K.-H. Chan, J. J. McDevitt, B. J. P. Hau, H.-L. Yen, Y. Li, D. K. M. Ip, J. S. M. Peiris, et al. 2020. Respiratory virus shedding in exhaled breath and efficacy of face masks. Nat. Med. 26 (5):676–80. doi:https://doi.org/10.1038/s41591-020-0843-2.
- Li, L., M. Niu, and Y. Zhu. 2021. Assessing the effectiveness of using various face coverings to mitigate the transport of airborne particles produced by coughing indoors. Aerosol Sci. Technol. 55 (3):332–12. doi:https://doi.org/10.1080/02786826.2020.1846679.
- Lindsley, W. G., F. M. Blachere, B. F. Law, D. H. Beezhold, and J. D. Noti. 2021. Efficacy of face masks, neck gaiters and face shields for reducing the expulsion of simulated cough-generated aerosols. Aerosol Sci. Technol. 55 (4):449–457. doi:https://doi.org/10.1080/02786826.2020.1862409.
- Lindsley, W. G., J. S. Reynolds, J. V. Szalajda, J. D. Noti, and D. H. Beezhold. 2013. A cough aerosol simulator for the study of disease transmission by human cough-generated aerosols. Aerosol Sci. Technol. 47 (8):937–44. doi:https://doi.org/10.1080/02786826.2013.803019.
- Liu, B. Y. H., J.-K. Lee, H. Mullins, and S. G. Danisch. 1993. Respirator leak detection by ultrafine aerosols: A predictive model and experimental study. Aerosol Sci. Technol. 19 (1):15–26. doi:https://doi.org/10.1080/02786829308959617.
- Liu, Y., Z. Ning, Y. Chen, M. Guo, Y. Liu, N. K. Gali, L. Sun, Y. Duan, J. Cai, D. Westerdahl, et al. 2020. Aerodynamic analysis of sars-cov-2 in two Wuhan hospitals. Nature 582 (7813):557–60. doi:https://doi.org/10.1038/s41586-020-2271-3.
- Lyu, W., and G. L. Wehby. 2020. Community use of face masks and covid-19: Evidence from a natural experiment of state mandates in the US. Health Aff. (Millwood) 39 (8):1419–25. doi:https://doi.org/10.1377/hlthaff.2020.00818.
- Makison Booth, C., M. Clayton, B. Crook, and J. M. Gawn. 2013. Effectiveness of surgical masks against influenza bioaerosols. J. Hosp. Infect. 84 (1):22–6. doi:https://doi.org/10.1016/j.jhin.2013.02.007.
- Marr, L. C., J. W. Tang, J. Van Mullekom, and S. S. Lakdawala. 2019. Mechanistic insights into the effect of humidity on airborne influenza virus survival, transmission and incidence. J. R. Soc. Interface 16 (150):20180298. doi:https://doi.org/10.1098/rsif.2018.0298.
- Milton, D. K., M. P. Fabian, B. J. Cowling, M. L. Grantham, and J. J. McDevitt. 2013. Influenza virus aerosols in human exhaled breath: Particle size, culturability, and effect of surgical masks. PLoS Pathog. 9 (3):e1003205. doi:https://doi.org/10.1371/journal.ppat.1003205.
- Mittal, R., R. Ni, and J.-H. Seo. 2020. The flow physics of covid-19. J. Fluid Mech. 894: article number: F2. doi:https://doi.org/10.1017/jfm.2020.330.
- Morawska, L., J. W. Tang, W. Bahnfleth, P. M. Bluyssen, A. Boerstra, G. Buonanno, J. Cao, S. Dancer, A. Floto, F. Franchimon, et al. 2020. How can airborne transmission of covid-19 indoors be minimised? Environ. Int. 142:105832. doi:https://doi.org/10.1016/j.envint.2020.105832.
- Mueller, W., C. J. Horwell, A. Apsley, S. Steinle, S. McPherson, J. W. Cherrie, and K. S. Galea. 2018. The effectiveness of respiratory protection worn by communities to protect from volcanic ash inhalation. Part i: Filtration efficiency tests. Int. J. Hyg. Environ. Health. 221 (6):967–76. doi:https://doi.org/10.1016/j.ijheh.2018.03.012.
- Oberg, T., and L. M. Brosseau. 2008. Surgical mask filter and fit performance. Am. J. Infect. Control. 36 (4):276–82. doi:https://doi.org/10.1016/j.ajic.2007.07.008.
- Ou, Q., C. Pei, S. C. Kim, E. Abell, and D. Y. H. Pui. 2020. Evaluation of decontamination methods for commercial and alternative respirator and mask materials - View from filtration aspect. J. Aerosol Sci. 150:105609. doi:https://doi.org/10.1016/j.jaerosci.2020.105609.
- Podgórski, A., A. Bałazy, and L. Gradoń. 2006. Application of nanofibers to improve the filtration efficiency of the most penetrating aerosol particles in fibrous filters. Chem. Eng. Sci. 61 (20):6804–15. doi:https://doi.org/10.1016/j.ces.2006.07.022.
- Prather, K. A., C. C. Wang, and R. T. Schooley. 2020. Reducing transmission of sars-cov-2. Science 368 (6498):1422–24. doi:https://doi.org/10.1126/science.abc6197.
- Rengasamy, S., B. Eimer, and R. E. Shaffer. 2010. Simple respiratory protection-evaluation of the filtration performance of cloth masks and common fabric materials against 20-1000 nm size particles. Ann. Occup. Hyg. 54 (7):789–98. doi:https://doi.org/10.1093/annhyg/meq044.
- Tang, J. W., T. J. Liebner, B. A. Craven, and G. S. Settles. 2009. A schlieren optical study of the human cough with and without wearing masks for aerosol infection control. J. R. Soc. Interface 6 (suppl_6): S727–S36. doi:https://doi.org/10.1098/rsif.2009.0295.focus.
- Tang, J. W., A. D. Nicolle, C. A. Klettner, J. Pantelic, L. Wang, A. B. Suhaimi, A. Y. Tan, G. W. Ong, R. Su, C. Sekhar, D. D. Cheong, and W. Tham. 2013. Airflow dynamics of human jets: sneezing and breathing - potential sources of infectious aerosols. PloS One 8 (4): e59970.
- The Economist. 2020. Masks probably slow the spread of covid-19. Accessed October 23, 2020. https://www.economist.com/science-and-technology/2020/05/28/masks-probably-slow-the-spread-of-covid-19.
- van der Sande, M., P. Teunis, and R. Sabel. 2008. Professional and home-made face masks reduce exposure to respiratory infections among the general population. PLOS One. 3 (7):e2618. doi:https://doi.org/10.1371/journal.pone.0002618.
- Wong, S. H., J. Y. C. Teoh, C.-H. Leung, W. K. K. Wu, B. H. K. Yip, M. C. S. Wong, and D. S. C. Hui. 2020. Covid-19 and public interest in face mask use. Am. J. Respir. Crit. Care Med. 202 (3):453–5. doi:https://doi.org/10.1164/rccm.202004-1188LE.
- Xiao, J., E. Y. C. Shiu, H. Gao, J. Y. Wong, M. W. Fong, S. Ryu, and B. J. Cowling. 2020. Nonpharmaceutical measures for pandemic influenza in nonhealthcare settings-personal protective and environmental measures. Emerg. Infect. Dis. 26 (5):967–75. doi:https://doi.org/10.3201/eid2605.190994.
- Xie, X., Y. Li, H. Sun, and L. Liu. 2009. Exhaled droplets due to talking and coughing. J. R. Soc. Interface 6 (suppl_6): S703–S14. doi:https://doi.org/10.1098/rsif.2009.0388.focus.
- Xu, G., and R. Antonia. 2002. Effect of different initial conditions on a turbulent round free jet. Exp. Fluids 33 (5):677–83. doi:https://doi.org/10.1007/s00348-002-0523-7.
- Yan, J., M. Grantham, J. Pantelic, P. J. Bueno de Mesquita, B. Albert, F. Liu, S. Ehrman, and D. K. Milton. 2018. Infectious virus in exhaled breath of symptomatic seasonal influenza cases from a college community. Proc. Natl. Acad. Sci. USA 115 (5):1081–1086. doi:https://doi.org/10.1073/pnas.1716561115.
- Yang, W., S. Elankumaran, and L. C. Marr. 2011. Concentrations and size distributions of airborne influenza a viruses measured indoors at a health centre, a day-care centre and on aeroplanes. J. R. Soc. Interface 8 (61):1176–1184. doi:https://doi.org/10.1098/rsif.2010.0686.
- Zangmeister, C. D., J. G. Radney, E. P. Vicenzi, and J. L. Weaver. 2020. Filtration efficiencies of nanoscale aerosol by cloth mask materials used to slow the spread of sars-cov-2. ACS Nano. 14 (7):9188–9200. doi:https://doi.org/10.1021/acsnano.0c05025.
- Zhao, M., L. Liao, W. Xiao, X. Yu, H. Wang, Q. Wang, Y. L. Lin, F. S. Kilinc-Balci, A. Price, L. Chu, et al. 2020. Household materials selection for homemade cloth face coverings and their filtration efficiency enhancement with triboelectric charging. Nano Lett. 20 (7):5544–5552. doi:https://doi.org/10.1021/acs.nanolett.0c02211.
- Zhou, J., J. Wei, K.-T. Choy, S. F. Sia, D. K. Rowlands, D. Yu, C.-Y. Wu, W. G. Lindsley, B. J. Cowling, J. McDevitt, et al. 2018. Defining the sizes of airborne particles that mediate influenza transmission in ferrets. Proc. Natl. Acad. Sci. USA 115 (10):E2386–92. doi:https://doi.org/10.1073/pnas.1716771115.