Fig. 7 displays subjective response of dry air sensation (dry: 1, not dry: +1). The results indicted that average votes of dry sensation of skin and eyes were in the range of 0.06–0.36 and 0.06–0.46, respectively, which were on not-dry side. It was found that all the dry sensations were insignificantly affected by thermal gradient and room air temperature as shown in Table 7 except that dry sensation of mouth and lips decreased with increase of room air temperature (p ¼ 0:031 and 0.021, respectively). This is again due to the higher moisture content at higher room air temperature.