Product review (2 stars): Crappy, humid and hard to fill
I have used refills for my humidifier for years, and usually it comes in a clear bag, filled with DRY granules.
This brand comes in a metallic package and the granules are humid and really just hard to distribute in the holder.
I guess the performance is the same as for the dry version, but it is a pain inthebutt to refill.
/Just letting you know/ Putting a wet paper towel under the recipient during refill helps you keeping the surroundings clean

Update:
After 1 week the filter clogs and the humidifier stops with about 1/3 filled tank. Please give us back the DRY GRANULES!!!