Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Definitely helps to keep wipes FRESH for longer periods of time

I have 2 wipe warmers. One at office. One at home.At first I was skeptical about this product's claim that it kills bateria to keep your wipes fresh longer, so I tried putting one of the two wipe warmes.After 2 months of usage, I can tell you their claim is true. My office wipe warmer without this smelled a bit stale while the wipe warmer at home with this smelled 100% fresh.The only con i know is that this pillows leave some brown colored dried-out residue after 2 months. I had to scrub a little bit to get rid of them. Other than this tiny residue problem, I am completely happy with its performance in keeping the wipes fresh for longer periods of time.