https://www.esphome.io/components/sensor/absolute_humidity/
Absolute Humidity - ESPHome - Smart Home Made Simple
Instructions for setting up absolute humidity calculation
absolute humiditysmart homemade simpleesphome
https://nsidc.org/learn/cryosphere-glossary/absolute-humidity
absolute humidity | National Snow and Ice Data Center
(1) the ratio of the mass of water vapor to the volume occupied by a mixture of water vapor and dry air (2) mass of water contained in a unit volume of moist...
snow and iceabsolute humiditydata centernational