Product review (1 stars): Filters are not worth the money
Starting to yellow after only 3 days. This is with me adding the algae/mold solution to my water while also flipping my filter over every morning.  But still seeing signs of growth in the filter. But it did increase my humidity like never before the first couple days.

Update 3/3/17: Filter is now losing its shape and humidity levels are barely changing.. terrible product.