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Inactivation of multiple human pathogens by Fathhome's dry sanitizer device: Rapid and eco-friendly ozone-based

Ryan Kenneally1, Quentin Lawrence1, Ella Brydon1

  • 1Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.

Medicine in Microecology
|August 10, 2022
PubMed

Insights

This study shows ozone gas effectively disinfects medical supplies and personal protective equipment (PPE), inactivating over 95% of common pathogens without harmful residue.

Area of Science:

  • Microbiology
  • Environmental Science
  • Biomedical Engineering

Background:

  • The rapid spread of SARS-CoV-2 highlighted critical shortages of personal protective equipment (PPE) and the persistent challenge of hospital-acquired infections.
  • Effective and rapid sterilization methods are crucial for managing infectious disease outbreaks and maintaining healthcare safety.

Purpose of the Study:

  • To evaluate the disinfection efficacy of a novel ozone-based, dry-sanitizing device for decontaminating non-porous surfaces.
  • To determine the dose and time response of the ozone device against various human pathogens.

Main Methods:

  • Testing the inactivation of vegetative microorganisms and bacterial endospores on plastic surfaces using Fathhome's ozone device.
  • Assessing pathogen inactivation rates based on varying ozone doses and exposure times.
  • Monitoring for residual ozone after the disinfection process.

Main Results:

  • Achieved 95.42-100% inactivation of vegetative microorganisms across tested conditions.
  • Demonstrated 27.36% inactivation of bacterial endospores.
  • Confirmed no detectable residual ozone post-treatment.

Conclusions:

  • The ozone-based dry-sanitizing device shows significant potential for rapid decontamination of PPE and other materials.
  • This technology offers a viable solution for addressing pathogen control in healthcare and industrial settings.
  • The method is effective against a broad spectrum of microorganisms with no harmful byproducts.
Keywords:
OGB, Ozone-gas-basedOzone-based disinfectionPPEPPE, Personal protective equipmentPathogen

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