Product review (5 stars): Easy to use
I bought the Hello Kitty humidifier for my daughter before I realized that it used a different filter than the Crane Duck humidifier I bought my son.  It was frustrating that they didn't match, but I like the way the Hello Kitty filter works much better and the next humidifier I purchase will be compatible with this type of filter.  It takes a minute to get the water flowing through the filter, but it seems to catch any "white dust" that would otherwise come out.  And when i take it out of the humidifier and set it by the sink, it seems to dry out nicer than the other filter.  Added bonus: my 2 year old likes to help set up the humidifers and can insert this one by himself.