Honeywell HMP-12P QuickSteam Mineral Absorption Pad 12 Pack. Helps prevent stubborn mineral buildup on the heating plate of the humidifier which can decrease the performance of your humidifier. Pads will generally last 2-4 weeks depending on hardness of water. Fits Honeywell Models: HWM-330, HWM-335 and HWM-450.
Prevents mineral buildup
Helps increase humidifier performance
Helps extend life of humidifier