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DeWalt 20V Vacuum Review

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Updated December 1, 2022
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90 Expert Rating

Thanks to its ability to switch to batteries, the DeWalt 20V Vacuum scores extra points for being the best car vacuum. And since it can handle liquids, too, it’s also a shoo-in for the best wet and dry vacuum cleaner. It’s like having the best shop vac, only for your car! When you’re ready to buy a cleaner for your home, check out our best vacuum cleaner reviews.

Why We Like It – DeWalt 20V Vacuum

Small, compact, and easy to transport, the DeWalt 20V Vacuum is a powerful and efficient small shop vac that can be powered via an AC outlet or with an 18V or 20V DeWalt Max battery.

  • Small, compact; easy to transport
  • HEPA filter is 99.97% efficient
  • Cordless corded design
  • Not ideal for big jobs
  • Doesn’t come with accessories


Whether you’re plugged into an AC outlet or using cordless power, the DeWalt DCV581H Shop Vac is pushing 31 CFM or 31 cubic feet per minute. For a leading small shop vac, that’s quite impressive, though it’s more consistent when used via AC.

Related: Check our Dealswin Keyboard Cleaner Mini vacuum review

Speed & Efficiency

Aside from suction power, the DeWalt 20V Vacuum is quite good at capturing small particles. Up to 99.97% of particulates get picked up as small as 1 micron. The Dyson 11V Vacuum can suck up particles as small as 0.3 microns, however.

Bin Capacity & Maintenance

If you were hoping to use the DeWalt 20V Max Cordless Wet Dry Vacuum for large jobs, we hate to disappoint. With just 2 gallons of storage, you wouldn’t use this for a large workshop unless you plan to make several trips (and the cost alone). Maintenance is nothing more than cleaning the reusable/washable filter every now and then.

Related: Read the DeWalt vacuum cleaner review


Being compact and all, the DeWalt 20V Vacuum is quite durable. It’s largely made of thick, tough plastic, which is to be expected. You’ll have a hard time destroying this vacuum—especially the crush-resistant hose. It’s certainly a bit more sturdy than a Eureka Easy Clean 71B, but not by much.


If you have DeWalt power tools and you love them, then there’s no reason to fill out your cordless tools collection with one of these DeWalt cordless vacuums (and a battery charger). It’s the perfect gift for someone who has their own personal shop in the garage, just to keep their area clean and tidy. After all, sucking up sawdust and whatnot isn’t good for you. This will change that. It doesn’t come with accessories, however, except for one, but the Bissell Garage Pro does! But, if you need a stronger device for commercial work, then you’ll want to check out our roundup of the greatest vacuum cleaners for builder’s dust.

DeWalt 20V Vacuum Wrap Up

The DeWalt 20V Vacuum is going to fit perfectly in your tool storage, right next to your DeWalt power hand tools. It’s small, compact, and even easy to transport—if you bring along a V18/V20 Max battery, of course. Its HEPA filter is the MVP, capturing 99.97% of particles as small as 1 micron. For accessories, pick one of the bundle options.

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