so they can actually detect the smell in the air? do you know from how far? or is this just in case they smell it in person?There are plenty of ways to avoid detection. Ventilate properly , mask/elimate odor and tell no one about the grow and you should be fine.
No they can't detect it in the air people walking by can detect it if it's not properly being controlled. Nosey neighbors walking by people coming over where the grow is. It will smell like fresh bud with odor control so anybody will know what's going on.so they can actually detect the smell in the air? do you know from how far? or is this just in case they smell it in person?