Originally bought the similar, smaller model years ago. It didn't last too long, maybe a season and a half. I then went with an ultrasonic. The air in my home was then filled with fine white dust (minerals spewed into the air when using hard water) which strangely caused the flames on my gas stove in the next room to turn pink. After developing a chronic cough from breathing in that dust, I got rid of the ultrasonic and decided to give this type of humidifier another chance, purchasing this larger model. I think I've now had this humidifier for 3 years and it is still operating well. I am using the actual Kenmore 14906 replacement filter this time around, instead of a bargain brand. I think that's the reason this humidifier is lasting much longer than the smaller one did. It is mold and mildew resistant and fits well into the unit. When I used the cheaper replacement filters with the smaller unit, it eventually emitted a musty odor, probably from bacteria buildup. I am filling it with water from an undersink water filter instead of out of the tap, since my water is very hard. Not all of the minerals are being removed, but this filtered water is better than ruining the unit with tap water. A filter lasts about 8 weeks or so -- when I see the unit running for days without running dry, I then know it's time for a change. I clean out the reservoir area with Soft Scrub, and it is then good as new. I also blow any dust out of the fan portion with my vacuum. Then it goes back to running well, going for less than 24 hours on two fills of the tank. I have it on F2 fan speed and it makes the dry air in my house comfortable again. I recommend this unit strongly -- no mold buildup (using the actual name brand Kenmore replacement filter), and no harmful dust to breathe into your lungs (ultrasonic humidifier).
I have had 3 humidifiers prior to this one from Kenmore and have been super happy with them. Almost cried when the last one died out out wear. This new 12gallons is deceiving, it's the output not volume capacity to hold water. The construction is very poor, the plastic wellds for the water tank are very rough, not even and the tank is kind of cocked. The water tank fill up is on the side and makes it almost impossible to fill up unless you fill it in your tub or have a big bathroom sink. As the water level goes down and the resevoir tank releases water, it sounds like a toilet being flushed and will wake you up in the middle of the night 5-6 times depending on fan velocity. I could careless about the inaccurate humidity digital reader, but I do care that the fan speed 2 died after 2 weeks. I am not returning it, because I threw out the box and I'm not carrying this mini R2D2 back to the store. I am upset and disappointed with the construction quality and very poor design. I am a big fan of Kenmore appliances, but this one takes the cake for the worst appliance I have ever bought from Sears.
I had to return the first one because of an electronic problem. The one I have now doesn't display the proper room humidity (i.e. the room humidity is between 50 and 55 but the digital display is 40). It does it's job well though.
The humidifier runs very quietly and efficiently.
I am so thrilled to have the humidifier! It was easy to set up and get going. The insteuctions are clear and make it easy for anyone to use. The watwr tank is wonderful and allows you to manage the moisture level perfectly. Now that we have this humidifier in the house we are much more comfortable. Before we started using it we were getting headaches and dry throats... not any more!!! I recommend this to everyone.
Bought this item March, 2015 and used it for 2-3 months last season. Swapped out the filter for this season and it lasted 2 months before the motor has completely failed. You get what you pay for and I suggest you buy a better quality product.
This humidifier put the much needed moisture in my house. I used to get nose bleeds cause air was so dry in winter and this machine has done the job.