I plan on purchasing a grow tent to enable me to control the climate (CO2, humidity, temp.) of my plants to give myself maximum yield, less maintence, and overall less worries. I am currenly growing four plants under a 400 watt hydrofarm convertable light in a spare room, but my plans are to have 3 400 watt convertables on a light rail inside about a 10' long by 5' wide and 7' tall grow tent with all the appropriate equipment. Now I am starting to bud in my spare room and I want to get rid of the smell but i want a filter/fan combo to fit the grow tent not my spare room. I have read on climate control rooms and from the information I have gathered I need a carbon filter w/ an inline fan and also a HEPA filter connected. With all the different size filters and different brands I was wondering what is a good high quality brand and combination? I can only find combos that come with the carbon filter and fan and no HEPA filter. I don't want a cheap filter/fan so what is a good filter/fan combo and a good HEPA filter to connect to for my size room (~10'X5'X7')? I am trying to go for good top of the line brands but not too over the top ridiculous price by finding good deals online. I have been considering active air filters because they are backed by hydrofarm and I lean toward the longer warranty which is why hydrofarm is my favorite.