Anyone know whats that all bout? Is it a better filter that we can just switch? Does changing the air filter result in better air quality in the cabin? Also I notice when turning on the a/c that theres a musky smell when I just turn the a/c on.. i had that in my old acura and i dunt want the problem to stick.. it goes away if I turn it on high and let it blast for a min or 2. Any tips?