Humidifier Tank Cleaner, Raipoment Demineralization Cleaning Ball, Compatible with Mist Humidifiers, Fish Tank, Purifies Water, Prevents Hard Water Build-Up，Eliminates White Dust and Odor, 10pcs

this is amazing; i put it in my tank, and the calcium buildup... it's still there, but it's the consistency of sugar glaze. it flakes right off and turns into slush. makes it SO easy to clean the humidifier.

I will never have to buy demineralizers again. Great product.

I think they are working, no white dust in my house from the humidifier. But I also use filtered water.Now, The ONLY problem I see with ALL of the Humidifier cleaning products is that they have nothing telling you what they are made of. So, if a child would happen to break one open and eat what's inside or even put in in their mouth and suck on it, you could not tell poison control what they just eat. NO WARNINGS OF ANY KIND ON THE PACKAGE IT CAME IN.

use in humidifier because of our hard water to keep humidifier clean

works

I don’t really know if they work or not. I just hope they aren’t hype.

I was hoping that they would neutralize the water more so not so much white residue. It was better but not great

This 10 pack comes without instructions on how many to use per gallon. They are very small, but I hope they work.