Product review (2 stars): Great System, Mediocre Filters
It's OK. It requires daily maintenance. To make it last longer, I soak the filter every day in the sink. I also make certain I flip the filter over every day and I clean the tanks and base every day. It outputs the best humidity the first time or two used and then it decreases rapidly. With my maintenance routine, I have other humidifiers and those filters last much longer. This filter is good for maybe a month.

I expect to clean humidifiers every day. Why I only gave 2 stars is because of the rapid decrease in output of humidity and that it doesn't last as long as my other filters. Plus, this filter is Honeywell's new version that was supposed to increase output. I notice no difference between the old and new version.