At first we didn't want to spend the money.  We decided after some research to purchase the Professional Plus Ionic Breeze GP and the Hybrid GP unit also.  The Professional Plus needs the bulb.  As the bulb starts to go it makes more noise so you need to clean it more often.  With the Hybrid I have to turn it down if we are sitting by it because it is cold air.  Shortly after we purchased these units we heard some negatives on TV and called and had our questions answered and felt better about our purchase.

We have in floor heating with no air flow in the winter so when we had a plumber...