yea i'll probably house the squirrel cage inside a larger wooden box. this way i can run an 8" or 6" insulated ducting from my grow box into the side of the fan. not going to put in the same room as my grow box, like you said it will probably be to loud. also building the box will allow me to insulate for sound along with the insulated ducting. muffler if things are still too loud. cool thing this should work nice.