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Ozone for Improving Indoor Air Quality - Myths and Realities

COURSE NO: C04-013
Ozone for Improving Indoor Air Quality - Myths and Realities
Course Highlights

This online engineering PDH course provides guidance on ozone's true capabilities, potential benefits and limitations in improving indoor air quality. This course attempts to address the common vendor claims and myths associated with use of ozone in indoor spaces.


With public concern about indoor air quality rising, many people are unknowingly making it worse by using air purifiers or other devices that intentionally inject ozone into the indoor spaces. Manufacturers and vendors of ozone generators often claim that these devices eliminate bacteria, mold, and chemical contaminants from the air, and that they help persons with asthma and allergies. This is not true or backed up by any scientific research.


Independent studies by the Environmental Protection Agency (EPA) and others have shown that these devices do not effectively destroy microbes, remove odors, or reduce indoor pollutants enough to provide any health benefits. In fact relatively low amount of ozone can be harmful to health and worsen chronic respiratory diseases.


This 4 PDH  online course is applicable to general public, HVAC engineers, facility engineers, architects, environmentalists, operations and maintenance personnel, as well as consultants and contractors who construct, build and manage facilities.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Ozone is most effective in controlling indoor air pollution
  • Ozone doesn't leave any harmful by-product or residue
  • Ozone destroys the sense of smell
  • Ozone can be used effectively in both occupied and unoccupied spaces
  • Ozone concentration in space never exceeds design values
  • Controlling ozone generators output is safe and simple
  • Ozone generators are approved and notified by Federal Agencies
  • Ozone is equally good for air and water pollution control
  • Ozone is most suitable for healthcare disinfection
  • Ozone works better than air filters
  • Ozone can reduce the fresh air intake in HVAC system and therefore energy
  • Low level ozone is good and beneficial
Course Document

In this professional engineering CEU course, you need to review the course document titled, "Ozone for Improving Indoor Air Quality - Myths and Realities".

To view, print and study the course document, please click on the following link(s):
Ozone for Improving Indoor Air Quality (924 KB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty five (25) questions to earn 4 PDH credits. The quiz will be based on this entire document.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: