Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fits well, has a funny smell the first couple of days

I got a few of these to fit in my humidifier and it was a perfect fit. The quality is outstanding, it doesn't get moldy as fast as the other brands. It does, however have a faint paper smell for the first time you use it after installation. It goes away shortly after and it isn't very strong that it will bother you. I would order these again.