I can't imagine doing this in an apartment! I can see a whole building stinking up...No. My extract vents into a drafty area of the loft. On a still day the loft gets a bit whiffy, but my house constantly smells of weed anyway!
I used to have real probs when I grew in a flat I used to live in, the neighbours would mention that the communal areas stunk.
I used ionisers, they only worked in a straight line back then, they were really unreliable.
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