I have bought this product twice now, from two different sellers, and both times the same issue: even on the highest setting, the fan only emits a barely perceptible sigh of air, and only does so out of 1/4 of the screen. So you only get purified air coming out in one direction, and barely any of it. The air coming out also smells like plastic. So disappointed and baffled by this, considering how many positive reviews of this exist I really expected so much better.