Video Demonstrations

Overview from DR21 on Vimeo.

Shows all details of the DR21 – the leaf blower test, a spoken introduction, and installation of the air vent from the point at which a core drill is used to make a hole in the wall.


DR21 home page from DR21 on Vimeo.

DR21 Leaf Blower demo

Installation from DR21 on Vimeo.

Shows a standard louvred vent being swapped for the DR21 in about a minute.