ac man came today, the bedroom was locked where my plants in the closet to the bedroom he was in the house but said "i need to get into the attic, is it through this back bedroom" i said no and then told him it was outside, he got up there fixed the problem question if i had been up there because someone had bumped it loose then left to his truck were he sat for 15 minutes and then left. i got up in the attic and you could see a 8" duct coming out of the attic floor and vaguely smell the plant up there , but none the less if he was to see the duct and smell it it definately smelled of plant even though it was carbon filter but only if you smelled direct ducting should i be worried it happened at 8 am but it is 10:30 pm and i havnet done anything, i wasnt worryying until i smoked now im paranoid