High-Efficiency Particulate Air Filters in the Era of COVID-19: Function and Efficacy

@article{Christopherson2020HighEfficiencyPA,
  title={High-Efficiency Particulate Air Filters in the Era of COVID-19: Function and Efficacy},
  author={David A Christopherson and W. Yao and M. Lu and R. Vijayakumar and A. Sedaghat},
  journal={Otolaryngology–Head and Neck Surgery},
  year={2020},
  volume={163},
  pages={1153 - 1155}
}
Aerosol-generating procedures in the office represent a major concern for health care–associated infection of patients and health care providers by SARS-CoV-2, the causative agent for coronavirus disease 2019 (COVID-19). Although the Centers for Disease Control and Prevention has not yet provided any recommendations for the use of portable air purifiers, air purifiers with high-efficiency particulate air (HEPA) filters have been discussed as an adjunctive means for decontamination of SARS-CoV-2… Expand
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The use of indoor plants could prove to be a cost-efficient way of indoor air-purification that could be adapted for a variety of environments with no need for special requirements and can also add an aesthetic value that can have an indirect impact on human health. Expand
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A simple, easy-to-use spreadsheet model is presented to estimate the infection risk for different indoor environments, constrained by published data on human aerosol emissions, SARS-CoV-2 viral loads, infective dose and other parameters, and suggests that aerosols from highly infective subjects can effectively transmit COVID-19 in indoor environments. Expand
Aerosol Transmission of SARS-CoV-2: Physical Principles and Implications
  • M. Jarvis
  • Medicine, Environmental Science
  • Frontiers in Public Health
  • 2020
TLDR
The underlying aerosol science is outlined, making links to aerosol research in other disciplines, including droplets emitted by “superspreader” individuals and the basis for variation in droplet size distribution and viral load. Expand
SARS-CoV-2 Seropositivity among Dental Staff and the Role of Aspirating Systems
TLDR
It is confirmed that dentists, being patient-facing HCWs, are at a high risk of acquiring the SARS-CoV-2 infection and the use of aspirating systems installed with HEPA filters, which evacuate and dissipate aerosols into specialized areas is recommended. Expand
Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments
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It is suggested that aerosols from highly infective subjects can effectively transmit COVID-19 in indoor environments, and active room ventilation and the ubiquitous wearing of face masks may reduce the individual infection risk by a factor of five to ten, similar to high-volume, high-efficiency particulate air (HEPA) filtering. Expand
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  • Medicine
  • Canadian journal of respiratory therapy : CJRT = Revue canadienne de la therapie respiratoire : RCTR
  • 2021
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Recommendations and rationales for device selection, interface selection, delivery techniques, and infection control based on the evolving body of literature are provided. Expand
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Effects of air-conditioning systems in the public areas of hospitals: A scoping review
Abstract Almost all hospitals are equipped with air-conditioning systems to provide a comfortable environment for patients and staff. However, the accumulation of dust and moisture within these… Expand
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