I looked everywhere but wasn't able to find the answer. Do I keep my oscillating fan and exhaust/can filter on when lights are out? I'm only 3 weeks into vegetation with a 18/6 light schedule. When my light is turned off everything including the oscillating fan and exhaust are turned off. It would make sense to leave everything on so fresh air can be pulled in and odors can be eliminated especially during flowering. I couldn't imagine plants sitting in complete darkness stinking up the tent and escaping into my main room. What do you all do? Thanks!