iPower 4 Inch 190 CFM Inline Duct Fan with Carbon Filter & 8ft Ducting - Grow Tent Ventilation System for Hydroponics, Indoor Gardening & Greenhouse Air Circulation (Silver)

I had originally planned to use it in a 4x4x7 tent but quickly realized it was too big for that so I just placed it in the room. I have been using it for about a month now with no problems. I am not using a speed control and the air is not vented out. My room is 13w x 18L x 8h 1872cf with various stages of ladies. The smell use to be so bad in the whole house but now you can't smell anything at all. Even inside the room, you need to be standing next to the ladies before you smell them. The fan seems to be working great as well. No problems to report with it. It is a little loud if you are in the room but I honestly can't hear it in the next room with the TV on low volume. The prefilter is good quality. I just throw it in the wash and air dry every 2 weeks. Overall I am very happy and impressed!