Product review (2 stars): Not as effective, and gives funky smell
You can wash these, but for me they give a funky smell after that no matter how much I wash it. Also, they do not suck up water as fast as the  non-reusable ones. So when my humidifier is on high, the whole thing dries out and does not work. I had to leave my humidifier on low, and after a night, the top half is dried, so I have to flip it. Because of this, they are not as effective at humidifying my bedroom. With these filters, they only go up to 60%, while the original can make my room go to 70+. Now I know that is really high, so if you only want ~50% these may be fine. But for me, I am going back to the original.