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The container holds 1500 ml and this thing sucks the humidity nicely and works with my external timer. I still get spikes, but it's way more under control now. It's gonna be hard to go under 55% with it though, which is great for some strains, but now the tent is workable at least.

Somthing is definitely better then nothing. I got a small one and it works best when it’s 80 degrees. It drops the percentage about 5-10 points.