Saturation vapor pressure (SVP)
The ceiling on how much water vapor the atmosphere can hold at a given temperature, in kPa. It climbs steeply as a room warms, so the same VPD needs a higher relative humidity in a warmer room.
The ceiling on how much water vapor the atmosphere can hold at a given temperature, in kPa. It climbs steeply as a room warms, so the same VPD needs a higher relative humidity in a warmer room.