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 William C. Yao and Mingming Lu and R. Vijayakumar and Ahmad R. 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… 

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References

SHOWING 1-10 OF 11 REFERENCES
The hallmarks of COVID-19 disease
TLDR
Recent progress in understanding the epidemiological, virological, and clinical characteristics of COVID-19 are summarized and potential targets with existing drugs for the treatment of this emerging zoonotic disease are discussed.
Quantity and Size Distribution of Cough-Generated Aerosol Particles Produced by Influenza Patients During and After Illness
TLDR
An enhancement in aerosol generation during illness may play an important role in influenza transmission and suggests that a better understanding of this phenomenon is needed to predict the production and dissemination of influenza-laden aerosols by people infected with this virus.
Particle Size Distribution of Mainstream and Exhaled Cigarette Smoke and Predictive Deposition in Human Respiratory Tract
The particle size distribution of cigarette smoke is an important factor in predicting the deposition fraction of the inhaled particles in various regions of the respiratory tract. Mainstream
Final report on evaluation of in-room particulate matter air filtration devices. Environmental Protection Agency
  • 2008
Hepa Filters
The high efficiency particulate air (HEPA) filter has become an indispensable item in the maintenance of biological safety and is also used as a means of preserving cultures from contamination
Infection control in healthcare facilities: public health guidance for community-level preparedness and response to severe acute respiratory syndrome (SARS)
    Considerations for optimizing the supply of powered air-purifying respirators (PAPRs): for healthcare practitioners (HCP)
    • Centers for Disease Control and Prevention
    Air: guidance for environmental infection control in health-care facilities
    • Centers for Disease Control and Prevention. Appendix B
    and Drug Administration
    • Enforcement policy for sterilizers, disinfectant devices, and air purifiers during the coronavirus disease 2019 (COVID-19) public health emergency: guidance for industry and Food and Drug Administration staff. Published March
    • 2020
    ...
    ...