This dzVents script is not made by myself, but as I refer to it in a Readme-file of another script and I can’t find version 1.9 anymore elsewhere online (unfortunately), I decided to put it here.
If you are the rightful owner or know where it is, so I can link to it there, feel free to raise an issue and I will remove it here.
Version 1.8 can be found at several webpages:
https://www.domoticz.com/forum/viewtopic.php?t=22177&start=60
https://domoticaboard.nl/index.php?topic=63.0
The forum thread of first link also explains the usage and settings of this script