The older style has issues... they actually listened and made changes ... and sent people on that thread replacement parts free... The new style fan and humidity reader are much better,, I have 2, both with the new style fan guard .. one with the old humidity and one with the new... new is good.. old is uhI bought it So happy I didn't buy it yesterday. On this thread looks like. Some things you should ask for before you use it. Or was that the older style ones. Do you happen to know? Thanks!!