• Highlight: The Viking PDS-21 is a pressurized wall-cavity dryer that pushes heated air up to 200F through 21 ports, reaching behind cabinets, under sinks, and inside wall cavities that standard air movers cannot.
• Best For: Water-damage restoration crews drying enclosed spaces and structural cavities without opening up walls.
• Expert Note: With 200 feet of included tubing and a stackable build, the Viking PDS-21 lets one tech target several cavities at once, a key reason restoration pros cite its strong return on investment.