I’m a little shocked that this would be case though. I tested with a sheet of tissue paper, and the fan sucked it in (is there another outlet?). Otherwise this would indicate that the static pressure differential reversed… which is physically impossible. A fan can recirculate air but still will always have some postive air flow. Going to look into this further to me it’s far more likely that the polarity was reversed in manufacturing… as others witness air blowing out of their units. I’ll test and get back here I suppose.
I’m not sure if that’s sufficient to exhaust abs fumes into your space?? Your not pulling out all the styrene