I am interested in building a living wall air purifier. I am
thinking of using aluminum square tubing for structure and
polycarbonate for the sides. Maybe a few levels of aloe vera to
acts a "multi stage" filter and add some full spectrum LED lighting
grid for night operation. . . . with watering, fan, lighting, and
monitoring controlled by an arudino.
If you use active charcoal as soil, will you be replacing them at a
regular interval? or is it something to keep the growing bed
homogenous and clean?
John