First is the saturation vapor https://www.vaporsuper.com/5pcs-pack-aspire-atlantis-replacement-0.3-ohm-0.5-ohm-coil pressure (SVP): jf.Hdasgsdfhdshshfsh@forum.Annecy-outdoor.com consider this as the utmost quantity of water vapor a given block of air can hold. I believe this is especially true if in case you have an air-conditioned house. This fashion I can calculate the VPD every half-hour of the day in my greenhouses, https://www.vapefeatured.com/coastal-clouds-sweets-iced-blood-orange-mango-snow-cone-60ml-vape-juice (relevant website) shade homes, https://www.vaporsuper.com/vaporesso-aurora-play-pod-cartridge-2Ml-2pcs-pack seedling incubator, https://www.vaporsuper.com/eleaf-istick-power-2c-box-mod-160w in the home with air conditioning on or https://www.vaporsuper.com/smok-e-priv-230w-tc-starter-kit-with-tfv12-prince-tank-8ml off. In the stable incubator, https://www.vaporlisting.com/cuban-blend-[nic-salt-version]-naked-100-e-juice the relative humidity stayed at 100% whereas the lights were off-in the plastic fronted model it solely gets to 75%.
Whilst 75% relative humidity sounds pretty good, look at the difference in VPD rates! Relative humidity is just not proportional to the rate of moisture loss from the plant.
