I recently moved into a place with humidity that stayed between 69-75%. I have several acoustic guitars that were starting to warp from it. The strings on one had begun to lay on the fretboard. It was unplayable. I tried several things before deciding on the dehumidifier. (Large Damp Rid buckets, Keeping the guitars in a plastic bag with multiple large silica packets, guitar cases that I lined in plastic that I filled with silica packets) Nothing worked at all. The dehumidifier takes more than 50 pints a day out of the air. It keeps the room between 45-47% consistently. Money well spent. Should have started with it instead of ending with it. Highly recommended.