Protec Humidifier Tank Cleaner, 1 Count - Colors May Vary

Cleaned my humidifier of the pink mold and using this so far no more mold!It says 30 days so I guess I have to track how long it will keep the mold away now

OMG! These things last forever! It took a year to use up one of these things, with the humidifier running every night. Rarely have to buy them.

A little large for all of our humidifers but the ones they fit in works great and keeps tank clean.

Something that seems so simple, yet really effective at keeping my humidifier protected against the hard water here in Arizona. I noted right away the smell was definitely cleaner than previous. If you use a humidifier that doesn't already have a pre filter, you need this. Plus totally adorable:)

This little guy actually works so well! I was a bit skeptical, but this has kept our humidifier clean & mold free for way longer than normal. Plus I love watching it float around the tank haha

Does not fit vick warm mist humidifiers, the fish is too big just barely

I purchased this item because my daughter had used one in her humidifier and it worked well. I like it better than the other item I have previously used. When used with distilled water, it works fine for me. I just keep adding water every couple of days or so to the humidifier and then once a month I empty it and start over with a new fish.

Great value for money and does excellent at keeping the humidifier clean