Shark IONFlex DuoClean Ultra-Light Cordless Vacuum

Last updated date: March 29, 2019

Review Melt Score

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We looked at the top 1 Stick Vacuums and dug through the reviews from 6 of the most popular review sites including BestReviews, New York Times Wirecutter, Tech Gear Lab and more. Through this analysis, we've determined the best Stick Vacuum you should buy.

Overall Take

The slim Shark IONFlex DuoClean has an LED light that's great for visibility under tight crevices, where it can reach with ease. Its suction power is suitable for cleaning both hardwood and carpet. Plus, a 5-year warranty makes for extra reliability. It's also versatile, with great handling and numerous attachments for upholstery or car cleaning. In our analysis of 70 expert reviews, the Shark Shark IONFlex DuoClean Ultra-Light Cordless Vacuum placed 1st when we looked at the top 10 products in the category. For the full ranking, see below.

Editor's Note April 9, 2019:
Checkout The Best Stick Vacuum for a detailed review of all the top stick vacuums.

Expert Summarized Score
6 expert reviews
User Summarized Score
695 user reviews
Our Favorite Video Reviews
What experts liked
Cordless operation. Converts to a handheld vacuum. Crevice and upholstery tools included. Stick bends in the middle to enable you to easily reach underneath objects. Good at sucking up pet hair.
- BestReviews
It’s better at cleaning upholstery and picking up big crumbs off bare floors, and has a longer warranty. The battery pack is also removable and charges in a separate dock.
- New York Times Wirecutter
LED headlights gives it better visibility. Flexible wand allows gives it more maneuverability and reach under furniture.
- Best Cordless Vacuum Guide
December 5, 2018 | Full review
DuoClean feature works well on carpet and hardwood floors. This vacuum has 5 year warranty.
- Will's Best Vacuums
The floor nozzle also has an indicator light that turns red when one of the brush rolls is stuck and two LED headlights for visibility. The wand-release button allows you to transform the stick vacuum into a handheld appliance for automobile and elevated cleaning. Plus, the upholstery tool, dusting brush, crevice tool and anti-allergen tool easily slide on and off the extension wand. Emptying the dust cup is easy.
- HouseholdMe
Great battery life, fantastic at cleaning hard floors, very easy to use.
- Tech Gear Lab
What experts didn't like
The dirt cup capacity is small, so you must empty it regularly.
- BestReviews
It’s not quite as strong of a carpet cleaner, either, and the battery lasts for only 20 minutes.
- New York Times Wirecutter
It takes around 3.5 hours to recharge and not as maneuverable as the V8.
- Best Cordless Vacuum Guide
December 5, 2018 | Full review
Slight resistance on back stroke when cleaning carpet.
- Will's Best Vacuums
A little pricey
- Tech Gear Lab

From The Manufacturer

The Shark IONFlex provides the benefits of DuoClean technology with cordless convenience. Removable, rechargeable ION Power Pack lithium-ion battery provides cleaning power where and when you need it with a variety of charging options. Featuring DuoClean Technology, a combination of a bristle brush and soft roller invented to clean fine dust and small and large particles on both carpets and floors. MultiFlex Technology folds over for compact, free-standing storage and provides flexible reach to get under beds, couches, and tables. Smart Response Technology provides a range of performance-enhancing power settings, tailored for your cleaning needs on carpets and floors.

Overall Product Rankings

1. Shark IONFlex DuoClean Ultra-Light Cordless Vacuum
Overall Score: 8.7
Expert Reviews: 6
2. Shark Rocket Ultra-Light Corded Bagless Vacuum
Overall Score: 8.4
Expert Reviews: 9
3. Dyson V7 Motorhead Cordless Stick Vacuum Cleaner
Overall Score: 8.2
Expert Reviews: 8
4. Hoover Linx Cordless Stick Vacuum Cleaner
Overall Score: 8.2
Expert Reviews: 9
5. Bissell Featherweight Stick Bagless Vacuum
Overall Score: 8.0
Expert Reviews: 4
6. Hoover Impulse Cordless Stick Vacuum Cleaner
Overall Score: 8.0
Expert Reviews: 4
7. Eureka Blaze Stick Vacuum Cleaner
Overall Score: 8.0
Expert Reviews: 5
8. Dyson V10 Absolute Cordless Stick Vacuum Cleaner
Overall Score: 7.9
Expert Reviews: 8
9. Bissell PowerEdge Stick Vacuum
Overall Score: 7.5
Expert Reviews: 5
10. VonHaus Corded Lightweight Stick Vacuum Cleaner
Overall Score: 7.1
Expert Reviews: 6

An Overview On Stick Vacuums

As hardwood floors become increasingly sought after in American homes, the stick vacuum has emerged as the cleaning solution of choice for many. A slimmed-down sister of the old upright vacuum, it does the hard work of tidying up floors without that bulky bag or the bulky profile. The first stick vacuums could store easily in even the smallest closet, and while they couldn’t boast the pickup power of the big uprights, they worked just fine for tile or hardwood. They could also handle tiny crevices and corners with greater agility.

Vacuum technology has come a long way in the last couple of decades, to the point where the best stick vacuums are perfectly capable of picking up dirt from just about any surface — rugs, carpets or upholstery.  Most models now can toggle between modes for cleaning carpets or bare floors. The main difference is typically a stiff-bristled rotating brush, which helps loosen deep-seated carpet dirt. On wood floors, it not only scatters that same dirt but can sometimes harm sensitive surfaces, so choose your setting accordingly.

The initial draw of the stick vacuum — portability — has likewise improved. Even budget models like the Hoover Linx are now cordless, allowing you to the freedom to clean floors, ceilings or patios without worrying where the plug is. Battery life is always a concern, but just mount it for a recharge and you’re ready to go again.

Many modern stick vacuums don’t even need to be confined to the house, thanks to their modular sensibility. Vacuums like the Shark IONFlex DuoClean are light enough in their normal configuration, but you can also detach the vacuum from the floor cleaner. Snap on one of a series of attachments, and you’ve got an effective handheld cleaner that can tackle car interiors or other tough-to-reach areas.

Finally, one of the same things that make stick vacuums so sleek also makes it more sanitary. Instead of the bag container of the classic upright vacuum, stick vacuums trap the dirt they capture in a cup – typically near the handle at the top. This container isn’t as roomy as that of an upright vacuum, meaning you’ll need to empty it more often. But when you do, it will generally mean less mess. Some vacuums double down on that cleanliness with a HEPA filter that traps tiny particles and allergens, but the thickness of that filter can reduce suction power in budget models.

Review Melt Fun Fact

The concept of vacuum cleaners has been around since the late 1800s, but the efforts of early inventors were more trouble than they were worth. Daniel Hess’ initial patent for a “carpet-sweeper” involved the use of a manually-operated bellows to create suction, so it’s no surprise that one may never have been created.

The advent of gasoline power didn’t do much to improve the concept. In 1898, John S. Thurman created a “pneumatic carpet renovator” that used a gas engine to blow (not suck) dirt into a large receptacle. The drawback? It had to be carted around in a horse-drawn carriage, with tubes that snaked into a house through the windows or doors. Believe it or not, Thurman actually did have some takers for his offer of house cleaning calls at $4 a pop.

The world’s smallest vacuum cleaner? As of December 2018, that honor goes to Talabathula Sai of India. He created a working 2.13-inch vacuum cleaner using a pen cap, 12-volt battery and a DC motor. We’re not sure what it cleans, but it sounds like it would be perfect for Barbie’s dream house.

The Stick Vacuum Buying Guide

  • The number one concern for anyone buying a vacuum, stick or otherwise, is going to be suction. It’s a difficult thing to quantify, as there’s still no generally accepted measurement of vacuum effectiveness. Not to mention, the fact that suction isn’t consistent even on the best vacuums. It can vary with the type of surface being cleaned, how full the dirt container is or how often the filter has been cleaned. That said, Dyson’s cyclonic filtration innovation has improved vacuum efficiency dramatically by eliminating the filter, and models using that system can be counted on for quality suction. Horsepower is also a good ballpark measurement, and user reviews can be helpful in determining how well a vacuum works and what type of surfaces it handles best.
  • Portability can also be a big concern. Stick vacuums are a favorite in many households primarily because they can maneuver under couches and coffee tables or even into ceiling corners — areas that upright units can’t easily reach. Cordless vacuums can be especially helpful for this, but you’ll want to bear the weight in mind, especially for older users.
  • If you’re choosing a cordless vacuum, research the battery life. The batteries on these vacuums are typically rechargeable, but larger houses may need more than one charge to get the job done. Models like the Shark IONFlex DuoClean have a removable battery, and you can even upgrade to a spare one that can be recharged while you run the original.
  • Depending on what you plan to use it for, attachments can make all the difference. Stick vacuums are versatile to begin with, but many have the added bonus of detaching from the floor cleaner and transforming into a handheld device. From there, you can pop on attachments like brushes or crevice tools to tackle upholstery, car seats or fan blades — if those extras are available for your vacuum.
  • Allergy sufferers are going to want effective suction (and maybe a HEPA filter for severe cases), but they will also want to make sure all those particles and dirt can be emptied out without getting it all over their hands. In that case, look for a detachable cup that can be easily cleaned, or a container like the Dyson V7’s that can be emptied without even touching the lid. Container capacity can be another big plus, ensuring that it won’t need to be emptied as often.
  • You and your floors may love a vacuum with a lot of horsepower, but your sleeping child may not. Some vacuums are definitely louder than others, so if you have sensitive roommates or children, do your research.