COVID-19的爆发重新引起了人们对口罩研究和大规模制造的关注。在过去的二十年里,作为控制由于暴露于颗粒污染物和有毒病原体而导致的疾病和死亡的措施,用于呼吸保护的面罩的使用变得越来越重要。市场上有许多不同的外科和高性能呼吸器面罩,然而纤维材料科学研究人员,制造商和公共卫生机构正在共同努力,在自我消毒方面即兴发挥,面部合身,热生理舒适,可重复使用性和生物降解性,同时保持或提高过滤效率。这篇综述文章介绍了材料汇编,现有口罩的设计和性能标准,并详细阐述了为提高其性能所做的发展。还强调了灌输良好卫生习惯和认真遵守正确戴口罩和脱口罩做法的重要性。当佩戴口罩已成为强制性要求时,这项审查有望在目前的COVID-19场景中做出有价值的贡献。
The outbreak of COVID-19 has created renewed attention on research and large scale manufacturing of face masks. In the last two decades, usage of face masks for respiratory protection has gained increased importance as a measure to control the maladies and fatalities due to exposure to particulate pollutants and toxic pathogens. Numerous variants of surgical and high-performance respirator masks are available in the market, and yet the fibrous materials science researchers, manufacturers and public health agencies are making concerted efforts towards improvising them with respect to self-sterilisability, facial fit, thermo-physiological comfort, reusability and biodegradability, while maintaining or rather enhancing the filtration efficiency. This review article presents a compendium of materials, design and performance standards of existing face masks, as well as elaborates on developments made for their performance enhancement. The criticality of inculcation of good hygiene habits and earnest compliance to correct mask donning and doffing practices has also been highlighted. This review is expected to make valuable contributions in the present COVID-19 scenario when donning a face mask has become mandatory.