The Verdamper Vaporizer Large

Bottle of 2000 ml, made of Borosilicate glass
own design, inspired by Afghan bottles

Borosilicate glass tubes
Without safety valve
Glass grease
Brushes
12 volt heating element
Bowl with mesh
Transformer 230 - 12 volts on wooden block.
Instructions for use and certificate
If the vaporizer will be used by more people, of if someone coughs easily, than this version with the safety valve is better.
The safety valve prevents water getting in the heating element, when air is being blown in the pipe instead of sucked.