Review on UC5501 UC5502 and CH601 Humidifier Replacement Filter by Elechomes by James Conrad

I bought this when I bought the humidifier. I didn't see a speck of dust anywhere, not even in the humidifier itself when I went to clean it. It is an absolute must for this humidifier. The instructions for the filter say it lasts 90 days, but you can extend its life by removing it from the lid and running water through it to wash it out. This is according to instructions. I've been using it for a month and so far it has filtered out 100% of all residue to the point where I don't even have to clean my humidifier. If you're buying a good, expensive humidifier, why not do your best to protect it and keep it working for as long as possible?