Very effective, used in a 100m2 basement and the smell of dampness due to flooding has been eliminated.

5 stars just because even though it has its noise where it works with the cigarette and the heat it pulls for 12 hours every day, it is efficient. It is beautiful even when it is inactive. Now the little scene you see is to secure the lid which is cumbersome and difficult to use. Put a clip on it, guys!