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20” Power Plus Box Fan

Model B20540

This durable, steel-body box fan from Lasko features the innovative Wind Ring® system for 20% more air velocity, Features 3 energy efficient speeds, a wider body for increased stability, top-mounted controls and a 2-year limited warranty. The patented Weather-Shield® motor allows worry-free window use.


  • Patented isolated Weather-Shield® motor for worry-free window use
  • 2-year limited warranty
  • Built-in carry handle
  • Wind Ring® system for 20% more air velocity
  • 3 energy-efficient 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