Experimental determination of the limiting criteria for human exposure to low winter humidity indoors (RP-1160)

For that study 60 subjects in groups of six, were exposed for five hours to two levels of air pollution, four levels of absolute air humidity, and three air temperatures . These conditions were established simultaneously in two adjacent climate chambers (one with clean air, and the other with air polluted by carpet and linoleum). Nine objective medical tests of eye, nose and skin function were applied. The results and conclusion are presented.