Abstract
The author has published a series of reports (1) to (6) showing results of his investigations of the air conditions of auditorium. Those investigations have been limited to one day's survey with respect to each auditorium by the request in the side of owners of the buildings. According to that reason the various unfavorable factors has come into the problem and confused the data. In this time the author has selected only one auditorium to make the conditions simple, such as occupants, ventilations and heatings, etc. Under those conditions the measurements have been done repeatedly through 4 days. As the result of this investigation some important conclusions have been obtained; for instance, with respect to the treatment of air conditions in auditorium and the air pollution by outside aerosol.