Not bad but not mine

The device in and of itself does the job, I think very good, but unfortunately I did not realize that it really is so loud! and I can imagine, I should be really peeved or cold and then hums this device even while I inhale, I do not get well from it.
Property me therefore decided to create the whole again to send returns and me gets an ultrasound.

Otherwise, the device funktiniert as it should.

Because of the loud noises therefore only 2 ** star