Product review (4 stars): Does the job.
These are great for our Vornado humidifier. They seem to get gross and gooey after about 2 months of fairly constant running. They will last you bit longer if you add bacteriostat into your water regularly but I am allergic to the chemical in that and can't breath it in without having major allergy attacks. There are generic versions of these Vornado wicks on Amazon but they are a bit more thin and less durable. They don't seem to hold up as well as the Vornado originals.