Comprehensive Indoor Air Quality assessments evaluating baseline thermal comfort and air quality levels to Building Industry ASHRAE Standards. Data logging over time of temperature, humidity, carbon dioxide, carbon monoxide, relative humidity, culture and/or Air-O-Cell testing, and evaluation of building envelope and HVAC systems for other air quality criteria such as Molds, Bacteria, Mycotoxins, Insect Parts, Allergens, Particulates, and Volatile Organic Compounds (VOC). Other capabilities include Fecal sterols, Endotoxins, Mycotoxins, PCR ~ DNA, Legionella, specified Allergens, MVOCs, Avian microbes.