I purchased the revlon 1875 to have on hand when my old hair dryer gave it up. That happened about a month ago. The last couple of times I used the unit, the coil lit up and it smoked when I turned it off. I am not comfortable using this unit any longer. I have only used it about a dozen times. There is no hair build up in it and it has not been dropped. I am attaching photos so that you can see that it is new and clean. I am very dissappointed.