The device i got has following problems
1. Very loud cracking noises from inside the device, during the entire time of the treatment
2. The device doesnt really switch off when the power button is turned to off. ( blue light still there)
3. After a month of use one of the fans started moving around and doing insane amount of noise. I realised the fan was nowhere fixed ( i could see the fan moving through the holes.) Now the fan just moves around and doesnt work. It should not be plugged on the device any more.