With last week's 95+ (F) temperatures, my Versa's A/C was having problems keeping up. I almost never do this normally, unless driving through a cloud of dust or smoke, but I switched to the "Max A/C" mode, where the interior air is recirculated and fresh air is not drawn in from the outside, in order to maximize A/C performance. I'm not sure that it made that much of a difference, but it led me to wonder. Where is the air being sucked in from the cabin, and does it still pass through the cabin air filter?