Iv'e got 288 cubic foot closet for my grow room and finnaly decided to install an oder control,or should I say my wife finaly decided.Is a 4'' fan and fiter big enough for me?Also do I have to vent it outside or can I just have it vent out inside the tent.Also do I need a muffler for the noise.Whats a good all around fan and filter combo that isn't to costly.