In conclusion, temperature gradient had insignificant impact on PAQ and SBS.
This implies that temperature gradient of 5 K/m should not cause detrimental effects
for tropically acclimatized occupants in terms of PAQ and SBS although it is beyond the restriction of 3 K/m as specified in present international standard [18].
Odor intensity, PAQ acceptability and corresponding PDs were insignificantly affected by room air temperature.
Dry air sensation, irritations and corresponding PDs decreased with increase of room air temperature.
Air freshness decreased with increase of room air temperature.
With lower room temperature, room air is perceived fresher.
On the other hand, energy consumptionis higher.
Therefore, optimum room condition needs to be explored in the future study in order to balance PAQ, thermal comfort and energy consumption in the space served by DV system.