Dr. Koster is apparently a very skilled educator. His manner of speaking was conversational and pleasant, while still imparting technical information. It was perfect for the audience we had.

His knowledge and experience gave him excellent credibility. He used his slides well to demonstrate his point and he was very approachable afterwards as people asked questions.

Diane Poole

Director of Senior Adult Ministry St. Johns-Salisbury (2/11/20)


Hi Dr Koster,

Thank you for giving a wonderful presentation at the Appachain State University Mid-Year Summit last week. Many people I spoke to were thrilled to have you present on something that was not generally felt to be common knowledge.

The way that you interacted and were involved with the audience was also deeply appreciated. I for one am making sure that I get out of my office on a regular basis to get some fresh air.

Thanks again for a thoughtful and inspiring talk.

Dief Alexander

Energy Summit Appalachian State (2/10/20)


THE WORK WAS OUTSTANDING. THANK YOU SO MUCH! One of our best projects. This group has boys that struggle to like school. They loved this work!!! TRULY!

Our 7th grade team is VERY INTERESTED in indoor and outdoor air quality. I think they will LOVE collaborating with you next! I'm bringing them into the discussion!

Shannon Hardy

Exploris School Raleigh N.C. (11/23/19)


Dr. Koster presented to a group of upper school and middle school teachers. The teachers were really impressed with his experience, from acquiring his education to working for the state of Massachusetts. I am sure there are some really great stories in there that would be fun to listen to. Dr. Koster described his latest gathered research on indoor air quality and the benefits of students conducting citizen science experiments. He then toured us through his lending library of equipment. Teachers were excited to begin brain storming about how to best use the equipment to enhance their teaching practices.

Jeremy Mattsson

Cannon School (10/10/19)


Dr. Koster, Thank you very much for your informative presentation to Charlotte International Rotary Club. I'm not sure any of us were aware of the significant effects that can be gained in student performance by improving the indoor air quality in our schools. Evidently, it isn't only the early starting times in schools that cause students to want to nod off. It certainly makes sense that higher levels of carbon dioxide and other pollutants could be an issue, but I don't think we imagined that our children might be in classrooms with CO2 levels as high as they were in the studies you described. It seems that a sampling of indoor air quality would be a wise decision for our schools, and action taken if the results warranted it. Thank you very much for sending your slide deck, so I can include your attachment when I send the meeting minutes. Again, we appreciated your well-organized presentation on this important topic.

Joan Foley

Secretary of Charlotte International Rotary Club, NC


Dr. Koster visited the Charlotte Top-of-the- Week Rotary Club at UNC Center City and delivered a fascinating presentation on an issue most of us in attendance knew nothing about and were shocked to learn. As a founder of “The Pollution Detectives”, Dr. Koster introduced us to the problem of increased CO2 levels in classrooms that reduce learning capabilities among children from Kindergarten through 12th grade-whatever socio-economic background they come from. The focus of his program and efforts is to raise awareness of a serious issue that can be easily corrected and by doing so can significantly increase the educational performance of our children. Club members were fascinated to learn how increased levels of CO2 can affect our learning and that there are currently no governmental efforts in NC focused on an issue that seemingly can improve educational performance for little expenditure of time, effort or money. We were both educated and amazed at Dr. Koster’s learned presentation on an issue not currently being addressed on any broad scale.

David Hare and Dave Cathcart

Charlotte, NC


Dr. Koster spoke at our Charlotte Dilworth South End Rotary Club. His presentation was eye-opening and very thorough. The things we don’t know about air pollution (specifically lead, carbon dioxide, and radon) in our children’s schools, and the effect it has on their ability to learn (including long-term consequences), is disturbing. He is one of the best speakers we have had! Thank you.

Jennifer Kendrick

Charlotte, NC


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