Ozone dosage and time required to kill specific bacteria

Short list of ozone levels and contact times required to inactivate specific bacteria.  For information on bacteria not shown, or references contact our staff.

Ozone effect on pathogens

Virus destroyed by ozone

  • Aspergillus Niger (black Mount): Destroyed by 1.5 to 2 mg/1.
  • Bacilius Bacteria: Destroyed by 0.2 mg/1 within 30 seconds
  • Bacilus Anthracis: Causes anthrax in sheep, castle and pigs. A human pathogen. Ozone suspceptible.
  • Clostridium Botulinum Spores: Its toxin paralyzes the central nervous system, being a poison multiplying in food and meals. 0.4 to 0.5 mg/1.
  • Diphtheria Pathogen: Destroyed by 1.5 to 2 mg/1.
  • Eberth Bacilius (typhus abdominals): Destroyed by 1.5 to 2 mg/1
  • Echo Virus 29: This virus most sensitive to ozone. After a contact time of Minute at 1 mg/1 of ozone, 99.999% killed.
  • Escheriachia Coli Bacteria (from feces): Destroyed by 0.2 mg/1 within 30 seconds
  • Encephalomyocarditis Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • Entcrovirus Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • GDVII Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • Herpes Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • Influenza: 0.4 to 0.5 mg/1
  • Klebs- Loffler Virus: Destroyed by 1.5 to 2 mg/1
  • Poliomyelitis Virus: Kill 99.999% with 0.3 to 0.4 mg/1 in 3 to 4 minutes
  • Proteus Bacteria: Very Susceptible
  • Pseudomonal Bacteria: Very Susceptible
  • Rhadbovirus Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • Salmonella Bacteria: Very Susceptible
  • Staphylococci: Destroyed by 1.5 to 2 mg/1
  • Stomatitis Virus: Destroyed to zero level in the less than 30 seconds with 0.1 to 0.8 mg/1
  • Streptococcus Bacteria: Destroyed by 0.2 mg/1 within 30 seconds Test results from The University of New Hampshire 2001

Pathogenic bacteria inactivated with ozone

2 thoughts on “Ozone dosage and time required to kill specific bacteria

  1. I have a question for your

    What is the ozone concentration needed to kill the Corona Virus in the air, in a room for example?

    and how does that concentration of ozone affect people, if they are breathing the air with that ozone?

    I will appreciate your response

    Thank you

    Professor M. . Moreno, Ph.D.

    1. There have been a few studies on this. We have been using 20 ppm ozone for 20 minutes. Early studies backed that up, and we are confident that is sufficient. Newer studies are showing less ozone for less time may be okay.

      Ozone at levels above 0.3 ppm should be exposed to people.
      Disinfecting a room with ozone should not be done at the same time as people are present.

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