Med Hypotheses. 2021 Jan; 146: 110411. Published online 2020 Nov 22. doi: 10.1016/j.mehy.2020.110411 PMCID: PMC7680614 PMID: 33303303 Facemasks in the COVID-19 era: A health hypothesis Baruch Vainshelboim⁎ Author information Article notes Copyright and License information Disclaimer Abstract Many countries across the globe utilized medical and non-medical facemasks as non-pharmaceutical intervention for reducing the transmission and infectivity of coronavirus disease-2019 (COVID-19). Although, scientific evidence supporting facemasks’ efficacy is lacking, adverse physiological, psychological and health effects are established. Is has been hypothesized that facemasks have compromised safety and efficacy profile and should be avoided from use. The current article comprehensively…