For darker locations consider Peace Lily (Spathephyllum), Chinese Evergreen (Aglonema), or Cast Iron Plant (Aspidistra). Many ferns might also be ideal. They may be the best at 'adding oxygen and moisture'. Pothos and Philodendron can also be nice.
Although all of these plants will do well in poorly lit conditions, they do the best with a little indirect light. Most prefer moist soil conditions as well.
I hope that this helps
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