10 Pack demineralization Ultrasonic Humidifier Replacement Cartridges for HoMedics, Filtering Mineral deposits Purifying Water

I used them in my humidifer. Didnt see any positive results. There was black dust everywhere in humidifer stuck to the walls. Hard to clean off. Still white dust in rooms and purifier went crazy everytime.

Put 2 capsules in my ultrasonic room humidifier. Made no difference to the amount of white dust covering all surfaces in my apartment. Waste of money!