
136 Environmental Health: Indoor Exposures, Assessments and Interventions
FIGURE 1 Impact of humidifier on typical day (November 14 to November 15) on relative
humidity in bedroom with humidifier operating from 6 PM to 7 AM.
Cumulative distributions of modeled hourly bedroom indoor AH levels over the
entire modeling period (i.e., October to March) are shown in Figures 2A and 2B. For
radiant heat, humidifi cation increased the AH approximately 4 mb, while the increase
was approximately one-half as large for the forced air heat.
FIGURE 2 (Continued)