Carbon Monoxide and Associated Dangers

I.     Course Prefix/Number: AHR 107

       Course Name: Carbon Monoxide and Associated Dangers

       Credits: 2 (2 lecture; 2 lab)

II.    Prerequisite


III.   Course (Catalog) Description

Course covers how to evaluate buildings that may have a high level of carbon monoxide due to being tightly sealed to reduce air infiltration. HVACR technicians and first responders will gain knowledge to analyze building structures and eliminate hazards associated with carbon monoxide poisoning. Course is designed to prepare students to take the ESCO Institute Carbon Monoxide Certification test and gain certification. This is a classroom course only.

IV.   Learning Objectives

After successful completion of this course the student will:
  1. Identify the causes of CO contamination and the resulting illnesses.
  2. Learn of the available instruments and meters that measure CO concentrations.
  3. Understand appropriate mixture of natural gas and air for proper combustion.
  4. Learn how to analyze the negative pressure that causes the reverse flow of flue gases.
  5. Learn methods of correcting the CO contamination problem by proper flue gas venting.

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

  1. Carbon Monoxide
  2. Health effects
  3. Sources of CO poisoning
  4. Code Compliance
  5. How much CO is too much?
  6. Combustion
  7. Advantages of measuring O2 vs CO2
  8. Relationship between O2, CO2, and Excess air
  9. Pressure measurements
  10. Pressure measurements for Buildings HVAC Installation, Service and Maintenance
  11. Closed door effect
  12. Effects of House tightness and Zone Tightness
  13. Using available forms for verification and compliance

VII.  Methods of Instruction

The methods include lectures, videos, class discussions; a mixture of classroom exercise.
Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

  1. All laboratory safety rules must be followed by students.
  2. All quizzes and exams and lab assignments must be completed.
  3. Frequent tardiness will result in an absence.
  4. Each student must participate in class/shop practices.
  5. Do not leave the class for the evening without notifying your instructor.
  6. Safety goggles must be worn at all times in the lab during lab.
  7. All tools, instruments and equipment must be returned to their appropriate place and clean-up work area.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

books to be chosen by instructor.

X.    Methods of Evaluating Student Progress

Average of two quizzes, plus mid-term, plus final exam. Three (3) absences lowers grade one letter; six (6) absences results in “F” grade.

XI.   Other Course Information

Three absences lowers the final letter grade three letters.  Six absences will result in failure of the course. All appropriate safety precautions must be observed during lab sessions.  Any accident must be reported immediately.  The lab must be cleaned and all equipment picked up before leaving.

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at

Resources and support for LGBTQ+ students can be found at

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.