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20″ Weather-Shield® Performance Box Fan

Model B20500

This high-performing box fan from Lasko features a patented Weather-Shield® motor for worry-free window use, plus a wide body design for greater stability. Three speeds and Save-Smart® (costs less than 2¢ per hour to operate) make this an ideal fan for any room where you need to increase cooling airflow.


  • Patented Weather-Shield® motor for worry-free window use
  • Wider body for greater floor stability
  • Built-in carry handle
  • 2-year limited warranty
  • 3 quiet speeds
  • Made in the USA from domestic & imported parts
  • The Blue Plug™ Patented safety fuse technology
  • Simple no-tools assembly
  • E.T.L. listed


  • Size/Height: 21.25"L x 4.75"W x 22.5"H
  • Weight: 10.17 lbs
  • Remote: No
  • Controls: Manual controls