To ensure a properly functioning Humidifier, the Pads should be changed twice each year. This package includes 2 Humidifier Pads for 1 pad change. Includes Instructions.

Humidifier Pads: Lightweight, durable, and highly absorbent with antimicrobial properties and a low lint level to help control residue buildup on sensors. They wick water across the Humidifier Heater Bar to bring moisture into the piano. If the pads are caked with mineral deposits or hardened on top, the Humidifier will not be effective.