My home builder put this in my new home. This unit did not work correctly the first time we used it. The motor made a terrible noise and was not spinning the fan correctly. They appliance company came out and put a new motor in the unit and it did not last more than about 2 times of use and no more than 30 minutes of run time. Also, when it does run the fan correctly, it is very, very noisy! Do not buy this PM250 unit!