Learn the methods, practices, and solutions that create a healthy indoor environment. Our courses are comprised of text and supporting visual information contained in graphs, charts and tables. They are readily available online, and are also available to be downloaded as PDFs so that you may study while away from your computer. Please note that our mentored correspondence course manual, Natural Healthy Buildings, IBE 101, is shipped to you along with a GaussMeter, a radon testing kit, a water testing kit, and additional required reading.

To download our comprehensive curriculum catalog, click here.

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