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Lasko 20" Box Fan Just $19.87 at Walmart — Beat the Heat

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A $19.87 Fan That Can Actually Move Some Air

If your AC is straining to keep up with the last stretch of summer, here’s a low-cost assist: Walmart has the 20” Lasko Weather-Resistant Motor 3-Speed Box Fan (model B20200, White) marked down to $19.87. Shipping is free if you have Walmart+ (a free trial is available) or if your order hits $35+.

This isn’t a delicate little desk fan. It’s rated for 1710 CFM of airflow, which is a lot of moving air for the price, and it has a weather-resistant motor, meaning it’s built to handle the kind of humidity and dust you get on a covered porch, in a garage, or in a three-season room — not just indoor use. With 3 speed settings, you can dial it down for a quiet bedroom overnight or crank it up to actually push hot air out of a stuffy space.

Who This Fan Is For

  • Southern families dealing with sticky evenings — a box fan in a window or doorway can pull cooler outside air in at night and take real pressure off your AC bill.
  • Garage and workshop folks — the weather-resistant motor makes this a reasonable pick for spaces that aren’t fully climate-controlled.
  • Anyone setting up a guest room, nursery, or dorm room on a budget — at under $20, it’s an easy add without much financial risk.
  • Renters and apartment dwellers who can’t install a window unit but need airflow fast.

How It Stacks Up

Most box fans in this size and CFM range typically run higher than $20 once you’re outside of a promo, so this is a genuinely low price point for the airflow you’re getting. It won’t replace a window AC unit or a whole-house fan, but for the cost of a couple of fast-food combo meals, it’s a solid supplemental cooling tool — especially paired in a room with a window unit to help circulate air further.

Caveats

There are two numbers floating around for this deal — it’s listed at both $19.85 and $19.87 depending on the source, so treat it as “just under $20” and confirm the exact price at checkout. Also double check the free shipping threshold: you’ll want Walmart+ or a $35+ cart to avoid a shipping charge tacked onto a fan this cheap. As with any hot deal like this, stock and pricing can change, so don’t wait too long if you want one.

Bottom Line

At well under $20, this Lasko box fan is a low-risk way to add real airflow to a bedroom, garage, or porch before summer winds down. Check the current price and availability on Walmart [AFFILIATE:walmart] before this pricing changes.