The Kenmore humidifier is one of the best I've ever used. It doesn't get stopped up and have problems with minerals in the water. It is quiet and works quite effectively in keeping a large area of my home at the right humidity level during the dry winter months. You are able to set the humidity range desired and the fan speed. The best attribute is that there isn't heavy water vapor blowing out of it, so your floor around it stays dry. You can place it just about anywhere. It also has an auto shut off in case it runs out of water while you're away. And it flashes an "F" on it's control panel to let you know to FILL the water tank. The water tank is easy to handle because it has a closed valve, so you don't slosh water getting it back to the unit. The replacement filter is so easy to install. And the filter is very effective in absorption of minerals so that the unit has a long life. I own three of the Kenmore Humidifiers and they have been the best I've ever owned!!
I agree that these are overpriced and they usually aren't in stock. I found a better source. Try www.iallergy.com and look for the MoistAir MAF-1 filter. It specifically fits the Kenmore 758.154120 humidifier (as well as other models), it is $3-4 cheaper and I received mine the next day via USPS (I must live close to one of their distribution facilities).
Buy this one & don't waste you time. After trying 4 other generic & slightly cheaper brands and having to create wire supports to keep them upright, I decided to buy the Kenmore brand. GLAD I DID.
They look similar but the Kenmore material is slightly thicker and more rigid so once you get it in place it stays there. It is worth the price based on the hours I wasted with the generic brands.
I regret this review because I want to keep Sears going, but the wick filter 15408 says it has laminated outer support for maximum effectiveness and durability, and it seems to be lacking altogether. I put a new filter in two days ago, and it crumples under the weight of the water it absorbs, so it doesn't bring the water high enough up for the fan to do any good. We can't get the humidity over 37% whereas before I replaced the filter, it was running 48-50 percent. These were not inexpensive - and now, having bought 4 of them to avoid shipping charges, it seems they were a waste of money.
They now sell these in flat rectangular boxes which means the filters are folded, rather than round like before, making it almost impossible to put in the dehumidifier!! I struggled to get it into a round shape to fit correctly so that I could out the top on and I’m still not sure it’s centered in there correctly. And to top it off I bought three because last year they sold out.