Reduces RH from 75% to less than 25% in 8 hours. Vertical models can be stacked 2 high. Blocks 99% of UV light Automatic desiccant regeneration. Built-in hygrometer on door. Full door gasketing - airtight, dust and moisture-free storage. Desiccant cartridges can be added under platform.   Available totally clear, clear with blue end caps, or blue (all doors are clear).  Provision for lock or tamper evident seal.  Outer housing made of polycarbonate, shelves are polystyrene with waffle holes for maximum air circulation The superior dehumidification performance of the auto-desiccator model makes it a natural choice for more perishable and expensive chemicals that require constant low humidity. Totally automatic, continual desiccation with silica beads, and regeneration every 20 minutes, keeps the RH level at a constant level. No long term regeneration lag between cycles - minimal change from opening the door. Two fans guarantee continuous air flow either within the cabinet, or continuous exhaust of humid air. Internal volume: 2 cubic feet. Distance between shelves: Horizontal 4.375 in Vertical 3.75 in. Desiccant sold separately. Power: 115V.