IDEHL® provides premium mycology services and technical consultation to indoor air quality and building professionals, and associated industries.


Under the direction of senior mycologist Dr. Payam Fallah, IDEHL® provides a range of IAQ analytical services for molds and fungi, bacteria, and biological and non-biological particulates.

IDEHL® analytical services are complemented by technical expertise and consultation on mold and fungal analyses, sampling strategies, and data interpretation on indoor microbial issues.

Our goal is to combine the highest quality of analytical testing with excellent client support.


Hardin BD, Robbins CA, Fallah P, and Kelman BJ. 2009. The Concentration of No Toxicological Concern (CoNTC) and Airborne Mycotoxins. Journal of Toxicology and Environmental Health, Part A, 72: 585-598.

Sudakin D and Fallah P. 2008. Toxigenic fungi and mycotoxins in outdoor, recreational environments. Clinical Toxicology. 46: 738-744.

Krause MW, Geer WT, Swenson LJ, Fallah P, and Robbins CA. 2006. Controlled study of mold growth and cleaning procedures on treated and untreated wallboard in an indoor environment. Journal of Occupational and Environmental Health. 3:435-441.