DreoDemineralization Cartridge 3-Pack for Humidifiers, Compatible with Dreo Humidifiers HM512S/713/713S, Prevent Mineral Build-up, Filter Hard Water, Eliminate White Dust

It filters the water like it is supposed to. But my wife and I found it is a lot easier to just use distilled water. I would highly recommend the same to others, if it is accessable. My wife buys it by the gallon at our local Walmart

I was reluctant to buy these filters beacuse of the reviews complaining that they smelled like fish. Apparently these people haven't smelled fish before because these filters smell nothing like fish to me and I grew up on a lake. There is a definite odor that I noticed when I first installed the filters, but it was more akin to an odor of a t-shirt that hadn't been washed before coming from wherever it was made. It's hard to explain, but it's sort of a sterile manufacturing type smell. Not off-putting at all and kind of faint, but certainly noticeable. That said, it's not an odor that bothers me in the least (it sort of notifies me that the humidifier is on) and I haven't seen any white powder since using the filters. The downside of course is the cost, but don't let the "fish odor" reviews deter you. Anyone that thinks these filters smell like fish are either full of fish or have never smelled a fish.

I am currently waiting on my replacement unit as the initial one was apparently defective. Customer service with this company has been a refreshingly positive experience. They explained to me that ordering direct from the company should ensure I have no issues with the new one. I'm sure if I forget they will contact me again to ensure my satisfaction with the newer unit. Looking forward to receiving it, and again their customer service is superb!

I had to run my humidifier for a few days before these came in and I noticed a white dust like substance everywhere. After I put the filter in, white dist susbtance was gone. AND there's no fish smell like others have claimed. So far, so good.

I had high hopes for the Dreo Demineralization Cartridge, but my experience has been nothing short of disappointing. This product is supposed to help reduce mineral buildup and improve the overall air quality from my humidifier, but it doesn’t deliver on either front.First off, it does absolutely nothing to prevent the buildup of white dust or mineral deposits. I noticed no difference at all in my humidifier’s performance or the amount of dust settling around the room. It’s as if I never even installed the cartridge. For a product that’s supposed to “demineralize,” it certainly fails to live up to its claims.To make matters worse, after just a couple of days of use, I started noticing a strange, unpleasant fishy smell coming from my humidifier. It was so bad that I had to stop using the cartridge entirely. The odor was overpowering and made the room smell terrible, completely defeating the purpose of running a humidifier in the first place. Instead of fresh, clean air, I was left with a room that reeked.Considering the price and the promises made by this product, I feel completely let down. Not only does it fail to do what it’s supposed to, but it actually makes things worse by introducing a foul odor. I wouldn’t recommend the Dreo Demineralization Cartridge to anyone. Save your money and look for a better solution that actually works.

Product works perfectly leaving no residue

When I ordered the filters I wasn't sure if it would make a difference they are working out well and are lasting quite a long time before needing to be replaced I'm still on the first one of the package of three the machine tells me when to change it so I will see how much more life i can get out of this one.

When I first tried to install one of these, I thought I’d gotten the wrong model for my humidifier. I had started an email to customer service, and I might’ve seen a review here that said you have to press the filter into place. I did that, and it was firmly in place. Skipped the support request email. As to how well it’s working, I really can’t tell yet. Flames on my gas range are still orange, suggesting that there are still lots of minerals being spewed into the air from the humidifier. It’ll take some time to assess whether the dreaded white film appears on my furniture. Instructions for installation could be better, as it does take a little force to press the filter into position.