Lasko B20500 Weathershield Performance Box Fan, 20-Inch

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Rating: 
Amazon Price: $49.64 (as of October 18, 2016 2:10 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Lasko's B20500 20 inch Weather-Shield Box fan is designed for interior or window use. The patented and isolated motor allows window use which safely and efficiently cools your house by pulling cool air in or pulling hot air out. [Not designed for outdoor use.].

Product Details

  • Product Dimensions: 22.5 x 4.8 x 21.2 inches
  • Shipping Weight: 8.4 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00N2CH1Z0
  • Item model number: B20500

Customer Reviews

so this is a perfect solution. Its powerful as far as moving air

8 people found this helpful.
 on September 29, 2015
By West1134
I suffer from ringing in my ears due to too many years working in a night club, so at night I need a droning noise to drown out the ringing. I also tend to sleep warmer, so this is a perfect solution. Its powerful as far as moving air, and on the highest setting is decently loud to drown out my ringing ears. Would definitely buy again.

Good box fan for home made air filter.

21 people found this helpful.
 on July 21, 2016
By AA
This the fan you want, especially if you want to use this for a home made air filter (you can attach a 20 x 20 airl filter in the back of the fan). The power outlet is on the bottom and the control is on the top. Made in USA with mostly plastic and some metals.

Great fans for utilization as air purifiers/cleaners.

One person found this helpful.
 on May 31, 2017
By Paul F
…..attach a 20 x 20 inch MERV 12 or MERV 13 air filter to the front or back of this fan (all the controls are on top and the electrical plug below) and you have an efficient and effective air purifier for a fraction of the cost of any air purifier. Your cost is simply the cost of this fan and the cost of the MERV 12 air filter.

Great but do not fit in fan bags.

 on May 2, 2017
By Katherine Hoyt
I love it HOWEVER… I purchased them specifically for my horse stalls. They were to be put inside of fan bags (the “classic equine fan bag” can also be found on amazon). They were too large though. It was a huge disappointment as I purchased these “weathershield” fans specifically for an outdoor use for my horses. I’m more pissed at the fan bag manufacturer, after several attempts we found a box fan small enough to fit. I gave them five stars because they are awesome, my husband uses them in his shop in the summer and they are not as noisy as his previous fans.

Excellent fan for the price

2 people found this helpful.
 on February 25, 2017
By TexasBS
Replaced a different brand fan (Galaxy) that just died after 7 years. This fan has much better air circulation, sturdy construction and an overall solid design. My old fan would sometimes fall forward…it wasn’t weighted well. This fan is well balanced toward the rear where the feet can shoulder the load.

Makes a great air filter

 on March 22, 2017
By Ted
1 fan, 1 20×20 filter, 3 small pieces of painters tape and you’ve got yourself a great at filter that’s very inexpensive to maintain. Don’t waste your money on anything else, dust and pollen problem solved. Very quiet on low, pushes a lot of air on high

Best box fan on amazon

 on May 26, 2017
By Garry D Gomez
This thing is well designed and very powerful. The plug is hard wired in a good place for fitting in a windowsill, the controls are easy to reach on top, and it blows a ton of air! Handle is sturdy too. Doesn’t wobble.
Well, I’ve 2 others of this brand and have loved them. Sadly, this one has a loud clicking/ticking sound when it runs, and even more sadly, I kept it in the box until after the return window had closed, my bad, my loss. Very disappointed.

Lasko 20 Inch Box Fan Unboxing and Review

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Unboxing and Review of the Lasko 20 inch box fan.