Healthy indoor air quality
The formaldehyde-free MDF non-toxic alternative made of natural rice-stalks
...window frames and doors, moldings, acoustic panels, interior doors, flooring, pergolas, etc.
Worth noting - beyond just the toxins in sealants, as well as binders and adhesives found in most composite wood materials, there are other durability and air quality issues with MDF and other engineered building products. So...