Pineapple Express - Low Pressure Aero

PE 2 started flowering on Tuesday, and PE 1 was a few days behind her. The smell has started to get pretty strong and the carbon filter does not seem to be keeping up. That might be because its a few years old, as it handled the other grows I've done with little problem. The humidity is up. Not because of any effort on my part, but because of the weather. The humidifier, wet towels, and spraying the inside of the tent with water helped a little but not that must with how dry my house was. I might have the opposite problem in a month. The roots are light brown, but there is no bad smell, so I think they are being stained from the nutrient mix.