A sauna should feel pure—just heat, steam, and wood. At 150–200°F, though, coatings and glues that weren't as harmful at room temperature can off-gas more; higher heat means higher vapor pressure, which means more chemicals in the air you breathe.

It is a scientifically-elementary fact that there are certain chemicals which humans have not biologically evolved to come into contact with. These chemicals -- having direct and harmful physiological effect upon contact with our skin or introduction to our lungs, bloodstream, or other systems -- are known as toxins. They are isolated or synthesized in extremely high concentrations in adhesives and other synthetic coatings and treatments.

Treatment of wood upon import from other countries is mandatory. When buying a sauna, pay attention not only to where it was built, many 'built in the U.S.A', but where the materials for the build is sourced.

We source every ounce of our wood from the U.S.A., as well as build them here, for a reason. Here at Craft Saunas, we keep contaminants out. No veneers or laminates, no wood-mimicking plastic, no interior plywood or MDF, and absolutely no chemically treated woods or other materials.

A step beyond, our saunas stand out in that they contain absolutely no adhesives or additives of any kind.

In the case that a customer requests a feature that typically requires adhesives (such as a wood door), we've come up with ways to do without. In the event that we do use an adhesive, it will be a zero-VOC adhesive selected for high-temp stability, we will use them sparingly, and we'll tell you first.

Our cabins aim for the experience you want: the quiet scent of wood, clear air, and pure heat—nothing extra.