That looks like an intake to me.....that also has an air filter behind it....and the front louvers look dirty to me. I'd begin by popping that off and put in a new filter and wash that grate. It's also low velocity intake and you should be able to put furniture within, maybe three inches away, without issue.
Yeah I need to clean it, I knew you'd say something about that haha if I can actually put it here it'll be awesome bc that spot is really just wasted space given the way my furniture is laid out.
Paul, there should be a filter right behind this vent? I thought it was just gonna be a duct?
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