Product review (3 stars): Wanted a more cost-effective solution
I love the humidifier, but HATE to spend $8 per filter, that only lasts 2-3 weeks.  This was a better solution to that.  They cost double but so far have lasted 6 weeks.  They are easy to clean, but will eventually fall apart.  BUT...if they last 4 times longer and only cost twice as much, I save money.