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

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 aerosols in health care settings. This commentary discusses HEPA filter mechanisms of action, decontamination time based on efficiency and flow rate, theoretical application to SARS-CoV-2, and limitations. HEPA filter functionality and prior guidance from the Centers for Disease Control and Prevention for SARS-CoV-1 suggest theoretical efficacy for HEPA filters to decontaminate airborne SARS-CoV-2, although direct studies for SARS-CoV-2 have not been performed. Any portable HEPA purifier utilization for SARS-CoV-2 should be considered an adjunctive infection control measure and undertaken with knowledge of HEPA filter functionality and limitations in mind.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:163

Enthalten in:

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery - 163(2020), 6 vom: 14. Dez., Seite 1153-1155

Sprache:

Englisch

Beteiligte Personen:

Christopherson, David A [VerfasserIn]
Yao, William C [VerfasserIn]
Lu, Mingming [VerfasserIn]
Vijayakumar, R [VerfasserIn]
Sedaghat, Ahmad R [VerfasserIn]

Links:

Volltext

Themen:

Air purifier
COVID-19
Coronavirus
HEPA
High-efficiency particulate air filter
Journal Article
Particulate Matter
SARS-CoV-2

Anmerkungen:

Date Completed 14.12.2020

Date Revised 14.12.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1177/0194599820941838

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM312393520