Product review (5 stars): They work great, and for longer than suggested; residue is eliminated
We bought this as a replacement for the cartridges in the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/HoMedics-UHE-OC1-Cool-Mist-Ultrasonic-Humidifier/dp/B008P8EV40/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">HoMedics UHE-OC1 Cool Mist Ultrasonic Humidifier</a>&nbsp;from Bed Bath and Beyond. These cartridges have worked great. You can definitely get a lot more uses out of them than the recommended 8-10 tank fillings. I think that number might be suggested to sell more cartridges, as we've used cartridges for 20-30 tank fillings without any residue accumulation. These cartridges completely take the white dust out of the air and we've had no problems with residue over months of use. Your mileage may vary if you have harder water, but ours has never given us much trouble.

The cartridge is very simple to use. You simply add it to the tank and continue filling as usual. We have been very satisfied with the ease of use and quality of the product. It's always great to find an item with similar functionality for cheaper than the name brand product and this certainly does the trick. I would definitely recommend this over the HoMedics cartridge.