i have a attic that i don't use and no body goes in to and when i have people over i don't want them to know im growing. The attic is 25 feet wide and 8 feet tall. it also has 3 vents(about the size of a large football helmet) that leads to outside. The attic's only opening is in the garage and has no openings in the house. i plan on growing 6 plants the plants will be green house arjan haze #1 and dna LA confidental indica. 3 of each im growing. How can i hide the smell.cost is not a problem.Thanks. this is a great site.