You probally don't wana hear this but a carbon scrubber is better than either of those. It works best with a fan but you can still leave it in the room and it will soak all odors, its just a canaster so you don't need to use any power like a generator, it just sits there. Ozone generators will rape the smell but are noisy as fuck and I heard they cause cancer. There's a good guide on here on how to make a carbon scrubber with just a bucket with holes and a pc fan. Save your money on those and either buy or make a carbon scrubber.