System for dehumidifying air

A device for reducing the amount of particles and water vapor in a column of air comprises:

• a. a frame having an outer frame, the outer frame having an outer wall, and an inner frame disposed on the frame, forming an inner frame wall spaced from the outer wall at an interior of the outer wall;
• b. wherein the inner frame wall is spaced from the outer wall to define a continuous peripheral channel between the outer wall and the inner frame wall, the continuous peripheral channel surrounding the inner frame;
• c. a front panel, formed as a grid, disposed on at least the outer wall and inner frame wall and is coextensive with the frame, the front panel extending across both the continuous peripheral channel and a space defined by the inner frame wall;
• d. a back panel, formed as a grid, disposed on an opposed side of the outer wall from the front panel, on at least the outer wall and inner frame wall, and being coextensive with the frame, the back panel extending across both the continuous peripheral channel and the space defined by the inner frame wall, the front panel and the back panel each having openings therein to allow air to flow through the device from the front panel to the back panel;
• e. an air filter medium disposed between the front panel and the back panel within the space defined by the inner frame wall, the air filter medium being substantially coextensive with the space defined by the inner frame wall, the air filter medium defining a direct airflow path through the air filter medium between the front panel and the back panel;
• and
• f. a desiccant disposed only within the continuous peripheral channel and outside the direct airflow path.