I'm currently building a grow room inside my garage. There's going to be an inline fan outside the grow room next to an outdoor vent in the garage. The fan will be sucking air through a Phresh intake filter and blowing it into the grow room. If I put a portable ac (about 10k btu) somewhere between the intake filter and outdoor vent will this suffice to cool the room? I'm thinking I might have to build a small box to enclose this area to maximize efficiency.