Healthy Homes, Part 5: Indoor Air Pollutants and Toxic Materials Course

Welcome to InterNACHI's free, online Healthy Homes, Part 5: Indoor Air Pollutants and Toxic Materials Course.  This is part 5 of a 14-part Certified Healthy Homes Inspector certification program provided by InterNACHI to members for free. 

The goal of this course is to teach students about indoor air pollution, the presence of toxic substances in a house, and how to safely handle and lower exposure to pollutants and toxic materials.  
Upon successful completion of this course, the student will be able to:
  • identify causes and sources of indoor air pollution
  • relate biologic pollutants to serious health effects
  • describe types and causes of allergies
  • list causes of mold and health effects of exposure
  • differentiate types of chemical pollutants 
  • identify other types and sources of toxic materials
  • outline a plan to manage and reduce the presence of these pollutants in the home
  • perform an inspection related to code issues
  • generate observations related to healthy housing
  • produce written reports related to observations conducted at a house

Course Includes:
  • 23 InterNACHI CE credit hours;
  • 2.3 CEU; 
  • 15,800 words; 
  • 25 quiz questions in 4 quizzes;
  • Inspection and writing assignment; 
  • Research and writing assignment;
  • 20-question final exam; and 
  • Certificate of Completion. 
You will learn the following topics:
  • Health Risks
  • Indoor Air Pollution
  • Biologic Pollutants & Asthma
  • Cockroaches
  • House Dust Mites
  • Pets
  • Mold
  • Allergic Health Effects
  • Toxics and Irritants
  • Causes of Mold
  • Mold Assessment Methods
  • Mold Standards
  • Mold Mitigation
  • Moisture Control
  • Removal of Mold-Contaminated Materials
  • Worker Protection When Conducting Mold Assessments
  • Chemical Pollutants
  • Carbon Monoxide 
  • Ozone
  • Environmental Tobacco Smoke
  • VOCs
  • Formaldehyde
  • Radon
  • Pesticides
  • Toxic Materials
  • Asbestos
  • Lead
  • Controlling Lead Hazards
  • Lead HUD Guidelines
  • Lead Regulations
  • Arsenic

Healthy Homes, Part 5: Indoor Air Pollutants and Toxic Materials Course.

Course # 4808



Estimated hours for the average student

Academic Engagement

Reading online course instructional material at 140 words per minute


Taking quizzes 


Taking the exam


Conducting a directed and independent inspection study performed according to the Standards of Practice, including the development of an inspection report 


Submitting an inspection and writing assignment

Submitting a research and writing assignment 0.5




Studying and reviewing instructional material in preparation for taking quizzes and exam 


Reading the downloaded student course book including taking the quizzes with the book 1.8
Reading, research, and studying related to completing the research and writing assignment 1.0
Studying and preparing for inspection processes according to a Standards of Practice, including capturing and storing digital images with a camera or device, making observations, evaluating conditions, deducing, formulating opinions, communicating observations in written form, attaining competency in performing inspections and using an inspection checklist or software and other inspection tools in producing a report. 10.0



Sub Total


Overall Total

23 hours

2.3 CEU

And, in keeping with InterNACHI's commitment to Continuing Education, this online course is open and free to all members, and can be taken again and again, without limit.
Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally.