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Temperature and Humidity: Difference between revisions
→Vapour pressure deficit (VPD)
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==Vapour pressure deficit (VPD)==
The VPD is the difference between how much water there is in the air (AVP) and the maximum amount of water the air can currently hold (SVP).
An excellent VPD calculator and chart can be found at [https://www.dimluxlighting.com/knowledge/vapor-pressure-deficit-vpd-calculator/ dimluxlighting.com]
==Ideal conditions==
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