This is How It Works
More detailed information here.
STOPS mold, mildew and rust!
The Dampp-Chaser warms, dries and circulates air in the confined storage space through an around-the-clock process illustrated to the right.
STOPS musty odors!
As air in the storage area is warmed by the Dampp-Chaser, it expands. The expanded air causes pressure inside the storage space to be slightly higher than air pressure outside the enclosure. This pressure differential pushes stale air out of the storage area and fresh, clean air seeps in to replace the stale air.