Creating a vertical grow

Can anyone help me out and give me some details. I am new to indoor growing and would like to use a hydro system for a vertical grow as to conserve space. I want to do a grow like his Heathes Ghetto Grow . I can build the box myself and will most likely be building a hollow box so no light or plants will be viable at all plus where i plan on putting the box does not have the best air quality, so i was wondering if i seal the box off and have ventilation just into the box and out of that box if that will help keep outt any molds or mildew

I am currently just starting to try and replicate Heaths tree grow. For the ventilation for a really small grow I would look at the CO2 buckets or bags. You can seal them off completely I would guess. You need to find a solution for the amount of heat and humidity that will be produced in the box. You can expect a few failures as you try to perfect something as advanced as a heath grow. Don't get discouraged. What keeps out the mold and mildew is no stress and no areas in the box that has low light. Keep yourself clean and try hard not to introduce bugs that hitchhiked in on your shoes or clothes.