J.P.
I had the same problem with the Graco model and was so tired og buying filter after filter. I decided to buy an inexpensive one that I could clean easier and that did not have a filter. I bought two Vicks Warm Vaporizors and they work well for my 2 boys' rooms. They are so much easier to clean. Since it is warm mist the box states that it is 96% bacteria free steam.