10 levels of breath rate available. At level 10, he is a little loud, but television or chat is possible. But then you have a stiff breeze in the parlor. Until Level 3 you hardly hear him. Since I live on a busy street, I can not sleep with an open window, or anything done in the open window. In the open window standing this wind machine exchanges the air in my room (about 25 m² with ceiling height 3.60) within 10 minutes. Otherwise it creates in my hut with stage 5 a pleasant climate. I can even sleep with this stage.
This one, he did not forget him a sleep timer function - with which you can let him off automatically after 15, 30, 45 minutes or the hour up to 9 hours.
No chatter, no the screeching, no Knartzen when swiveling back and forth. Wonderfully easy to clean.
The only thing I nibble a bit is the hearty, crunchy price.