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Related Experiment Videos

Surgical helmets and SARS infection.

James L Derrick1, Charles D Gomersall

  • 1The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region, People's Republic of China. jamesderrick@pobox.com

Emerging Infectious Diseases
|March 20, 2004
PubMed
Summary
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Surgical helmets tested showed inadequate filtration of tiny particles, failing to perform as respirators. They should not be relied upon alone for protection during aerosol-generating procedures against severe acute respiratory syndrome.

Area of Science:

  • Medical Device Performance
  • Infection Control
  • Respiratory Protection

Background:

  • Surgical helmets are used in healthcare settings.
  • Assessing the filtration efficiency of personal protective equipment is crucial.
  • Severe acute respiratory syndrome (SARS) poses a significant airborne threat.

Purpose of the Study:

  • To evaluate the in vivo particle filtration efficiency of two brands of surgical helmets.
  • To determine the suitability of surgical helmets as respirators for sub-micrometer particles.

Main Methods:

  • Performance testing of two surgical helmet brands.
  • In vivo filtration assessment for sub-micrometer-sized particles.

Main Results:

Related Experiment Videos

  • The tested surgical helmets demonstrated inadequate filtration efficiency for sub-micrometer particles.
  • Helmets are not designed or marketed as respirators.

    • Conclusions:

    • Surgical helmets are not effective respirators.
    • Do not use surgical helmets alone for protection against SARS during aerosol-generating procedures.