Sunbeam SBM, Letter Code C Humidifier Filter, 4 Piece Keep your humidifier working effectively by replacing filters regularly. The Sunbeam & reg; Cool Mist Filter C with triple layers traps impurities for fresher, cleaner moisture in your home The ARM &amp; HAMMER name, logo and associated marks are trademarks of Church &amp; Dwight Co., Inc. and are used under license by Sunbeam Products, Inc Includes color check, a Purple color Strip that turns red when it's time to change the filter