Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Right fit for my humidifier, odd number to include in a set though.

These fit my Sunbeam SCM631 without issues and is working well.I question why they're sold as a pack of 3 rather than a pack of 2. AFAIK none of the Holmes or Sunbeam humidifiers use 3 of these filters at once. You're either left with an odd filter that is not used, or are forced to by two of these packs (which I did),