Aerosol Containment Device Design Considerations and Performance Evaluation Metrics

Details

• Personal Author:
  Andrus N ; Biggs J ; Dominguez T ; Drews FA ; Hansen B ; Jones RM
• Description:
  Background: Spurred by the Coronavirus infectious disease 2019 pandemic, aerosol containment devices (ACDs) were developed to capture infectious respiratory aerosols generated by patients at their source. Prior reviews indicated that such devices had low evidence of effectiveness, but did not address how ACDs should be evaluated, how well they should perform, nor have clearly defined performance standards. Towards developing design criteria for ACDs, two questions were posed: 1) What characteristics have guided the design of ACDs? 2) How have these characteristics been evaluated? Methods: A scoping review was performed consistent with PRISMA guidelines. Data were extracted with respect to general study information, intended use of the device, device design characteristics and evaluation. Results: Fifty-four articles were included. Evaluation was most commonly performed with respect to device aerosol containment (n = 31, 61%), with only 5 (9%), 3 (6%) and 8 (15%) formally assessing providing experience, patient experience and procedure impact, respectively. Nearly all of the studies that explored provider experience and procedure impact studied intubation. Few studies provided a priori performance criteria for any evaluation metric, or referenced any external guidelines by which to bench mark performance. Conclusion: With respect to aerosol containment, ACDs should reduce exposure among HCP with the device compared with the absence of the device, and provide ≥90% reduction in respirable aerosols, equivalent in performance to N95 filtering facepiece respirators, if the goal is to reduce reliance on personal protective equipment. The ACD should not increase awkward or uncomfortable postures, or adversely impact biomechanics of the procedure itself as this could have implications for procedure outcomes. A variety of standardized instruments exist to assess the experience of patients and healthcare personnel. Integration of ACDs into routine clinical practice requires rigorous studies of aerosol containment and the user experience. [Description provided by NIOSH]
• Subjects:
  Aerosols Communicable Diseases Engineering Occupational Health Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Aerosol Particles Author Keywords: Aerosol Box COVID-19 Engineering Controls Equipment Design Infection Control Infectious Diseases Respiratory Aerosols Respiratory Diseases
• ISSN:
  0735-6757
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 8 ; OSHA Region 9 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  12-20
• Volume:
  64
• NIOSHTIC Number:
  nn:20067790
• Citation:
  Am J Emerg Med 2023 Feb; 64:12-20
• Contact Point Address:
  Rachael M. Jones PhD, 650 Charles E Young Dr. S, 71-295, Center for Health Sciences, Los Angeles, CA 90095, United States of America
• Email:
  rmjones@ph.ucla.edu
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Utah
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  The American Journal of Emergency Medicine
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:54e20cfc96e0f06e9737b2c6f6f57f05b37456b8ca8714a016797b30e6f4a543fa8139b1716a7de2a46033ec6984d5207d7a9329b0b8480be40d535687111fea
• Download URL:
  https://stacks.cdc.gov/view/cdc/230046/cdc_230046_DS1.pdf
• File Type:
  [PDF - 582.19 KB ]