The report reviews indoor air quality research from 1980 through December 1984. It is also a compilation of two documents that review relevant literature on the subject and summarize the efforts of leading research scientists. The first effort involved: (1) a review of journal articles, symposium presentations, and bibliographic reports from 1980 through 1983; (2) a list of contacts with approximately 30 prominent researchers in the indoor air quality field; and (3) a list of significant articles that appeared prior to 1980. The second effort updated the initial literature review to January 1985. Again, articles, symposium proceedings, and reports were screened in developing the update report. The vast majority of material found in the two reports, 'Review of Recent Research in Indoor Air Quality' (EPA-600/2-84-099) and 'Update of Indoor Air Quality Bibliography' (draft), has been retained in the document. The report integrates the material from the two reports, following the organization of the earlier.