About Us

From Ian Cull, the owner of Indoor Science

Here is my story….


In 1995, I was finishing up my Environmental Engineering degree at the University of Illinois, Champaign-Urbana, and was looking for an internship. I landed a job with Chelsea Group, Ltd., one of the few indoor air quality consulting firms in existence at the time. I worked with them as I finished my degree and then again after graduation (although I took a long time off volunteering on water projects in Kenya).


In 2001, I taught my first indoor air quality class. I loved it. I always had a knack for explaining things in an understandable manner… maybe because my dad was an educator. Through 2004, I balanced my time between performing indoor air quality assessments and teaching classes across the country for Chelsea Group.


In 2004, Chelsea Group’s headquarters moved to Hawaii and the owner, George Benda, allowed me to spin off my training and consulting into a new company. Indoor Science was born!


Both my consulting and training work really started to take off. I became a sought after speaker on indoor air quality topics. In 2006 I was elected to the Board of Directors of the Indoor Air Quality Association. I later went on to serve as the organization’s vice-president from 2008-2011. From 2011-2013, I was hired by the association to serve as its first Technical Director. During my tenure, I authored 50 classes on a wide range of air quality topics which are currently available for purchase through the IAQA University. I also helped launch the association’s YouTube channel.  I’m currently the chairman of the IAQA Research Committee.


I have been invited to speak at events around the globe to places such as China, India, Malaysia, United Arab Emirates and multiple Caribbean islands. I’ve been hired on consulting projects across the US by private clients and government agencies including the US Department of State. In 2017, I wrote a book Fundamentals of Mold Remediation.  Over 4,000 of my peers and past students have subscribed to my monthly newsletter, many of which have given me professional endorsements on LinkedIn.

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I am a licensed professional engineer (PE) and a Certified Industrial Hygienist (CIH).  I have served as a consultant on several court cases.  I say all this not to brag, but to give you the assurance that you are hiring a firm that cares about performing quality work to the highest of standards.



Our Team

Although Ian Cull develops the project assessment plans, field work is performed by our project managers Dylan McIntosh, Joel Silva, Jordan Thomas and Scott Wieringa. Mr. Cull reviews results and works with the project managers to provide conclusions and recommendations.


Joel, Dylan, Jordan, Scott, Ian and Heather
Indoor Science Team at our Chicago office: Joel, Dylan, Jordan, Scott, Ian and Heather