The machine sprays the oil straight up. There is not a fan to cast the oil out. Because the oil comes out of the top it left a mark on the wall above the plug. We can not use of sale this item.
Dear, all these kind of machines are spraying the oils straight up, that is normal condition without any problems. This model is our best seller, no any customers feedback this oil out problem.
If it left mark on your wall, that is maybe the oils you used are in too high concentration or other reason, but totally not the product problem.