Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Targard Permanent Filter

Wow. This thing works! The sticky, nasty tar (and other stuff) it pulls out are a real shocker! It is not easily cleaned with hot water. I have found alcohol is a MUST, and it doesn't eliminate the odor (or discoloration on clear tip) from the plastic piece completely. Keep in mind, this thing does it's job well and therefore STINKS! I just keep mine in a little zip-lock bag to contain the smell. This filter works like a charm, and I will definitely keep using mine!