I looked at that little cute one. I bought a small Pro breeze 500ml for my small tent. I wouldn't say it was cheap at £36. It does draw water over 24hrs, but does little for the humidity inside the tent. Sorry if I'm repeating myself here, but the research I did, seemed to suggest buying one that extracts more than 2L and sits outside a tent next to intake fan. The one you just bought looks more efficient than mine....huh, we live and learn! If anything has spoiled the full enjoyment of my first grow, it's stressing over a 60% humidity. If it has been raining, it often rises to 68% lights off...gulp