due to the lack of a hygrometer, it is not possible to measure the humidity, I was pleased with the size, although it was indicated, it seemed larger than in fact. At night I leave a little less than 1/4 of a turn, then a uniform noise allows you to fall asleep. As a flavoring agent, it does not last long, either it evaporates quickly, or there is little oil (I drip a few drops), maybe it is necessary to add oil in a different way. Feels cold, but I read that this is normal. After 3 days, the waSee full review