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Shark

Shark IP3251 PowerDetect Clean and Empty Stick Vacuum

  • 70 minutes of runtime, measured at the hand vac in eco mode
  • Auto-empty base holds up to 45 days of dirt and debris
  • 0.74 quart onboard bin capacity
  • 21.6 volt lithium-ion battery, 6 hour charge time
  • 380 watts, 3.75 A
  • HEPA filtration plus odor neutralizer cartridge
  • 2 power levels with automatic boost when dirt is detected
  • 18.5 lb listed weight, 46.34 inches tall

Updated 23 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A strong choice for carpet and pet hair homes that want the bin emptied automatically after every clean. The listing gives one weight figure without separating the stick from the base.

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ASIN: B0DBVW1RFWModel: IP3251Category: Stick Vacuums & Electric Brooms

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Overview

Not just a stick vacuum, the Shark PowerDetect IP3251 comes with an auto-empty base that charges the unit and pulls debris out of the bin after each clean. Its DuoClean Detect nozzle senses dirt, edges, floor type and direction, raising power when it finds debris.

Hands-off emptying is the reason to choose it, because the dock charges the vacuum and clears the bin after every run. Away from the dock the onboard bin is small, and a full recharge takes hours, so large homes may need to plan cleaning around the battery.

Who it's for

Homes with pets, carpets and hard floors get the most from the dirt sensing nozzle and the self-emptying dock. Shoppers who need a corded vacuum for unlimited run time, or who cannot spare floor space for a dock, should look elsewhere.

Pros and cons

Pros
  • Auto-empty base stores weeks of debris
  • Nozzle boosts power when it senses dirt
  • Captures debris on forward and reverse strokes
  • Pet multi-tool and duster crevice tool included
Cons
  • Onboard bin is small away from the base
  • Long charge time for a full battery
  • Weight figure does not separate stick and base
  • Warranty not listed

Performance notes

Runtime depends on mode: Shark quotes its figure from eco mode measured at the hand vacuum, not from boost with the floor nozzle. The DuoClean Detect nozzle captures debris on forward and reverse strokes, and its sensors raise power only when they detect dirt, which saves battery on clean stretches. HEPA filtration and the odor neutralizer cartridge handle dust and smells from what lands in the bin and the base.

Specifications

BrandShark
ModelIP3251
Dimensions & fit
Item weight18.5 pounds
Item Dimensions L x W x H10.2 × 18.6 × 46.3 inches
Capacity & performance
Capacity0.7 quarts
Number of Speeds2
Wattage380 watts
Auto empty capacityUp to 45 days of debris
Power & efficiency
Power SourceBattery
Number of Power Levels2
Battery DescriptionLithium-Ion
Amperage3.75 amps
Voltage21.6 volts
Battery charge time360 minutes
Construction & materials
ColorDark Gray
Other details
Runtime70 minutes
Surface RecommendationAll floors
Form FactorStick
Filter TypeHEPA Filter (washable)
Indoor Outdoor UsageIndoor
Control TypePush Button
Recommended Uses For ProductCarpet, Home, Pet Hair
Style NamePowerDetect W/ AutoEmpty (Essential)

Frequently asked questions

Does the Shark IP3251 runtime apply in boost mode?

No. Shark states the 70 minute figure was measured at the hand vacuum in eco mode. The listing gives no runtime for boost mode.

Can the Shark IP3251 HEPA filter be washed?

Yes. The filter is listed as washable. The listing does not give a replacement schedule.

Is the Shark PowerDetect IP3251 only for carpet?

No. The surface recommendation is all floors, and the nozzle detects floor type and adjusts. It is listed for indoor use only.