It’s funny how we always feel it dead we need to keep optimal temperature and humidity meanwhile all professionals always shoot for keeping the correct VPD vapor pressure deficit which tells them what temperature and humidity to aim for. We thought we are working with relative humidity meanwhile professionals are working with transpiration of plants which changes the moisture in surrounding area and promotes water & nutrient uptake. It’s important to have an infrared thermometer to measure your leaves temperature because they should be normally about 5° cooler than the environment temperature and use the chart according to that lead temperature offset.
It’s truly fascinating stuff and I tend to absolutely love it 





