New homes are said to be “moldier” than homes constructed 20 to 30 years ago. This is because new home construction design and the building materials used can be more conducive to toxic mold growth and infestation. For example, so-called “fake stucco” constitutes an excellent source of nourishment for toxic mold, particularly when wet. Current insulation techniques can trap moisture behind walls. In addition, today’s homes (and office buildings) are more airtight, with the result that air-conditioning and heating systems often re-circulate air that has been contaminated with toxic mold spores.