As described already propagated here, unfortunately tear after a while all the rotor blades a, which causes the hair dryer first place is very noisy and secondly (which is probably the worst) to overheat, which comes from grinding the leaves on the edge! After about a minute, then closing with air from the device! Unfortunately, I have thus say that this product is not recommended, and I hope that too many good recessions are less because each buyer will eventually annoy!