PureGuardian Aquastick 2-pack Antimicrobial Humidifier Treatment Sticks, GGHS15, Blue

I use these all winter. I have two humidifiers - ultrasonic and I hate cleaning them. So I did some research on my own and these are the best. I have no mold,algae, scum, etc. The silver in them stops it cold. I replace these every 2 months because I use the humidifiers all day. I recommend these, easy to install and remove, unless you like cleaning out your units.

The packaging was well done and they open singularly, which is nice if i only need one cartridge right away. They appear really good quality. I'm hopeful these will work as well as advertised because all my humidifiers get slimy as well as hard water buildup. I'll report back in 3 months!

It works as advertised. No more white dust to dill with.

Keeps my humidifier clean when used with distilled water.

We have ver hard water so with these better assurance for purity in the mist and better for the machine!

like that it last 3 mouths

I really like this in place of pouring a liquid humidifier cleaner in and it feels healthier.

I run two 1.5 gallon (tank) humidifiers in the winter. The main issue I have is constantly cleaning them. Been using two sticks in each of the tanks since 12/23. Have noticed no mold / slime build up in either humidifier since. However, I did treat each humidifier with some bacteriostatic treatment solution 3 days before the aquasticks arrived / started using them. This may also have played a part in helping to maintain a clean tank / machine.

Created more white dust on everything around the humidifier. Total waste of money.

Did not work to stop slime and bacteria growth as advertised. I also clean my humidifier every few days.