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Mold Course

Take the Mold Course

"Introduction to Mold and Mold Remediation for Environmental and Public Health Professionals"

This course provides an overview of mold prevention and mold remediation. It is based on EPA's voluntary March 2001 guidance document Mold Remediation in Schools and Commercial Buildings. Public health and environmental health professionals who are involved with mold issues may be interested in this course.  Building managers, custodians, remediators, contractors, and other professionals who respond to mold problems may also want to refer to this course.

Start the Mold Course
Please note that the course and the document on which it is based provide guidelines; other cleaning and remediation methods may be preferred by some professionals. This course does not cover all situations and all potentially useful methods or techniques. The absence of a method or technique from this course does not indicate or imply that it is not effective. Please consult the Resource List for additional information. A Mold Course (PDF) (77 pp, 550 K, about PDF) of the course, a Mold Image Library, Glossary of Terms and a Knowledge Test are also available.

  • These mold guidelines are for damage caused by clean water (not flood water); see the EPA Fact Sheet: Flood Cleanup - Avoiding Indoor Air Quality Problems for flood information.
  • Research on mold and on its health effects continues. This course does not describe all of the potential health effects related to mold exposure; it provides only an overview. For more detailed information, consult a health professional or your state or local health department.
  • Please note: EPA does not regulate mold or mold spores in the air.

Continue to instructions on How to Use This Course.


Chapter 1 - Introduction to Mold

  1. What Molds Are
  2. What Mold Needs to Grow
  3. Health Effects That May Be Caused by Inhaling Mold or Mold Spores
  4. Mycotoxins and Health Effects
  5. The Color of Mold
  6. Moldy Smell

Chapter 2 - Where and Why Mold Grows

  1. Introduction to Mold Growth
  2. Moisture Problems
  3. Humidity
  4. Ventilation Humidity Problems
  5. Structural Integrity and Mold Growth
  6. Crawl Spaces
  7. Floods

Chapter 3 - Finding Mold and Moisture

  1. Where to Look for Mold Contamination - Building Investigation
  2. Equipment
  3. Mold Sampling Considered

Chapter 4 - General Remediation Issues

  1. Dry Quickly
  2. Assess Mold Problem
  3. Remediation Plan
  4. Mold Remediation Procedures

Chapter 5 - Large Areas and Other Special Concerns

  1. Remediating Large Areas of Mold Contamination
  2. Mold Remediation in Heating, Ventilation, and Air Conditioning (HVAC) Systems
  3. Confined Spaces

Chapter 6 - Containment and Personal Protective Equipment (PPE)

  1. Overview of Containment
  2. Limited Containment
  3. Full Containment
  4. Personal Protective Equipment (PPE)

Chapter 7 - Evaluating the Remediation

  1. Completing Mold Remediation - Fix the water problem and clean up the mold
  2. Considering Bioaerosol Sampling

Chapter 8 - Communicating with the Building Occupants

  1. Communicate When You Remediate

Chapter 9 - Prevention

  1. Mold Prevention

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Mold Basics Mold Cleanup Cleanup Guidelines Hidden Mold Image Library Introduction to Mold Mold Course Prevention and Control Tips What to Wear When Cleaning Mold Flood Cleanup Español Indoor Air Quality

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