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About This Course


This half-day course covers:

  • Assessing Microbial Contamination - Virtual hands-on demonstrations of testing & sampling methodologies such as air, surface & bulk sampling, ATP, Mycometer, moisture meters, laser particle counters, and more.

  • Understanding Lab Reports - Review of typical laboratory reports,  how to decipher the data into meaningful information, and using these multiple pieces of information to get the whole picture at a site.


Earn ACAC Continuing Education Credits (CEUs)

This class is approved for (4) CEUs towards your ACAC Certifications.

Requirements to Attend this Live Online Class

Students must have a functioning webcam and microphone to attend this class!


Students should also have a cell phone with text capabilities to participate in online polls/quizzes during the class. 


We strongly recommend having a headset/mic combo, but students can also use their computer's built-in microphone, along with external earphones/earbuds.

Cancellation / Reschedule / Refund Policy


Need to Reschedule? No Problem.

We understand that sometimes situations arise that may require you to miss a scheduled training session.  You can reschedule for another available class with no additional fees.


Our Satisfaction Guarantee is committed to providing you with the best training experience possible. We're pretty sure you'll happy with our offerings, and we back that with a 100% guarantee--If our class fails to meet your expectations, we will refund your fee, period!

How to Perform Sampling & Understand the Results




A half-day workshop for microbial sampling and report interpretation. We guide you through the somewhat "subjective science" of mold and bacterial sampling, from methodologies and proper techniques, to understanding what the lab results mean.



Group Discounts are available for this class!  Save on groups of 2 or more students.

We can provide an online class for a group of your employees, delivered right to your conference room! 

Please call or email us at: to get special pricing large groups and in-house training options. We can schedule a class to accommodate your specific needs! 

About the Instructor

Bob Krell, CIEC, CMRS, LEED-AP, NYS-Licensed Mold Assessor

Syracuse, NY


Bob has been a nationally recognized indoor environmental consultant and trainer in the IAQ industry for over 30 years. He has designed and managed successful indoor environmental and building performance projects for residential, commercial, educational, and healthcare facilities throughout the U.S. and abroad, and conducted hundreds of investigations since 1990.

In 2000, he served on the American Indoor Air Quality Council’s (now ACAC) development committee to create their Certified Microbial Remediation Supervisor (CMRS) program, the IAQ-industry’s first board-approved mold certification. 


He authored the principal course materials and delivered training courses to over 1000 CMRS candidates throughout the country.

Bob Krell served on the National Air Duct Cleaners Association (NADCA) for three consecutive terms from 1990-2000.  He served on the Executive Committee in both Secretary and vice president capacities.  Bob was the Project Manager for the EPA-NADCA HVAC Systems Cleaning Study in 1996-1998, and chaired the Standards Committee from 1997-2000.  In 2015, he was inducted to the NADCA Hall of Fame for his industry contributions.


Bob is president of IAQ Technologies, Inc., a Syracuse, NY-based indoor environmental and building performance firm offering consulting, mitigation and training services to a variety of clients throughout the country and abroad. Bob is the founder of Healthy Indoors Magazine, and the Training Director for, which provides live virtual classroom distance learning offerings for the indoor environmental industry.


He has presented at numerous industry conferences, appeared on national television and radio, produces educational videos and webinars and is widely published on indoor environmental topics. He also moderates “The Healthy Indoors” discussion group on LinkedIn.

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