Significantly, information on the home environmental is now recognized as often important to the clinical management of respiratory disease. Guidance is presented for clinicians regarding questions they should be asking patients regarding residential conditions associated with dampness and mold, and how clinicians should work with Indoor Environmental Professionals (IEP). Key components are identified that should be included by an IEP in an environmental report if the report is to be useful to a clinician. The importance is stressed of an IEP avoiding making medical inferences and of a clinician not making conclusions about the building.