The SaniDry Sedona is a high-capacity, high-efficiency dehumidification system. The SaniDry takes up to 100 pints of water per day out of the crawl space air while using the same energy as a 40-pint dehumidifier. The SaniDry air system wrings the air dry, and it's blower moves that dry air into and around the crawl space. The dry air then dries the building materials, which makes the damp smell and damp feeling go away. This makes a HUGE difference.