PSU Air Duct

I thought to myself, it doesn't always have to be complicated.
Anet A8+ owners know that the Power Supply fan constantly blows air towards or over the print bed as well as the print object.
Yes, of course there are already ideas for it, but I wanted to be able to attach it simply and without great effort.
My airflow is very simple but effective.
I simply glued the part to the power supply with double-sided adhesive tape, because as long as the power supply works there is no reason to remove it again.