Product review (1 stars): Terrible product!
I have used Vornado humidifiers & wicks for years, and this product, from Filters Now is bad beyond belief. I don't know what material they are made of, but they definitely do not "wick" water up into them. I've tried pre-soaking them, re-soaking them and soaking them in detergent - all to no avail. Within an hour after putting them into use, they are totally dry above the water line in the humidifies, and the room humidity plummets. Do NOT buy this product!