Shark Ionflex Duoclean Cordless Vacuum

Last updated date: October 12, 2020

DWYM Score

Shark Ionflex Duoclean Cordless Vacuum

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We looked at the top Cordless Vacuums and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Cordless Vacuum you should buy.

Overall Take

This cordless vacuum is powerful, efficient and flexible. Plus, it's very versatile and easy to switch between the different attachments and tools. In our testing, we thought the bendable hose was super convenient for reaching under couches and beds. The container, located on the top, was also very easy to empty. In our analysis of 102 expert reviews, the Shark Shark Ionflex Duoclean Cordless Vacuum placed 3rd when we looked at the top 14 products in the category. For the full ranking, see below.

Editor's Note October 12, 2020:
Checkout The Best Cordless Vacuums for a detailed review of all the top cordless vacuums.

Expert Summarized Score
9 expert reviews
User Summarized Score
511 user reviews
Our Favorite Video Reviews
What experts liked
There’s plenty of suction power on even the lower power mode and all tools are well designed.
- Trusted Reviews
July 18, 2018 | Full review
It has two removable lithium ion batteries so that you can charge one battery while still using the other
- Best Cordless Vacuum Guide
This cordless vacuum has swappable batteries — a fantastic feature that allows you to customize your battery life to match your cleaning needs.
- Tech Gear Lab
It is great for quick clean-ups.
- Top Ten Reviews
March 16, 2018 | Full review
It is extremely effective in cleaning these floors without ruining them.
- Best Vacuum Expert
January 15, 2018 | Full review
The plastic parts fit almost seamlessly together making a strong, yet lightweight unit.
- Will's Best Vacuums
Rated Excellent overall. The flexibility of the model also allows for better maneuverability around furniture, more compact storage and the ability for the unit to stand on its own. It converts to a hand vacuum and you can use the power nozzle in hand vac mode.
- Consumer Reports
Better at getting crumbs off bare floors and pet hair off furniture.
- New York Times Wirecutter
It's a vacuums that easily adapt to different spaces.
- Modern Castle
May 11, 2018 | Full review
What experts didn't like
It’s a little unwieldy in the hand, heavy to reach high cobwebs, and the main floorhead tends to pull forward.
- Trusted Reviews
July 18, 2018 | Full review
It’s a bit more pricier than the corded Rocket.
- Best Cordless Vacuum Guide
The Shark IONFlex is a bit on the pricey side, but it is the best. However, there are definitely better options out there if you are looking to maximize the best bang for the buck.
- Tech Gear Lab
The IONFlex is a little heavy and needs to be emptied often.
- Top Ten Reviews
March 16, 2018 | Full review
The dust collection bin is small and fills quickly
- Best Vacuum Expert
January 15, 2018 | Full review
The Shark ION Flex DuoClean Cordless Ultra-Light Vacuum (IF201) has a tendency to pull itself along like a Self-Propelled vacuum when cleaning carpet. This certainly requires almost no effort for pushing the vacuum forward but it takes some getting used to when pulling it back.
- Will's Best Vacuums
It's on the heavier side of stick vacuums and does not have a brush on/off switch.
- Consumer Reports
It’s heavier and louder.
- New York Times Wirecutter

From The Manufacturer

The Shark IONFlex 2X provides the benefits of DuoClean Technology with cordless convenience. Experience hassle-free runtime with the 2X ION Power Pack System, which includes a second removable, rechargeable ION Power Pack lithium-ion battery, allowing you to vacuum while your second battery charges. 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

MOOSOO K17 2-In-1 Handheld Cordless Vacuum
1. MOOSOO K17 2-In-1 Handheld Cordless Vacuum
Overall Score: 9.6
Expert Reviews: 11
Whall Aucma 250W Brushless Cordless Stick Vacuum
2. Whall Aucma 250W Brushless Cordless Stick Vacuum
Overall Score: 9.4
Expert Reviews: 0
Shark Ionflex Duoclean Cordless Vacuum
3. Shark Ionflex Duoclean Cordless Vacuum
Overall Score: 8.8
Expert Reviews: 9
Shark Navigator Freestyle Cordless Bagless Vacuum
4. Shark Navigator Freestyle Cordless Bagless Vacuum
Overall Score: 8.5
Expert Reviews: 8
V7 Motorhead Cordless Stick Vacuum Cleaner
5. V7 Motorhead Cordless Stick Vacuum Cleaner
Overall Score: 8.4
Expert Reviews: 9
Dyson V8 Absolute Cordless Stick Vacuum Cleaner
6. Dyson V8 Absolute Cordless Stick Vacuum Cleaner
Overall Score: 8.2
Expert Reviews: 7
Dyson V6 Cordless Stick Vacuum
7. Dyson V6 Cordless Stick Vacuum
Overall Score: 8.0
Expert Reviews: 9
Bissell Air Ram 1984
8. Bissell Air Ram 1984
Overall Score: 7.9
Expert Reviews: 6
Dirt Devil Reach Max Plus
9. Dirt Devil Reach Max Plus
Overall Score: 7.9
Expert Reviews: 3
Hoover Linx Cordless Stick Vacuum Cleaner, BH50010
10. Hoover Linx Cordless Stick Vacuum Cleaner, BH50010
Overall Score: 7.9
Expert Reviews: 10
Dirt Devil Extreme Power
11. Dirt Devil Extreme Power
Overall Score: 7.8
Expert Reviews: 3
Dirt Devil Power Stick SD
12. Dirt Devil Power Stick SD
Overall Score: 7.7
Expert Reviews: 2
Dyson Cyclone V10 Motorhead Cordless Stick Vacuum
13. Dyson Cyclone V10 Motorhead Cordless Stick Vacuum
Overall Score: 7.5
Expert Reviews: 9
Eufy Homevac
14. Eufy Homevac
Overall Score: 7.2
Expert Reviews: 7

An Overview On Cordless Vacuums

Cleaning the house can be a real drag, especially because you’ve likely got much better things to do with your free time. But gone are the frustrating days of tripping over your vacuum cord or trying to maneuver the vacuum in one hand while keeping ahold of the cord in another. Thanks to a little ingenuity, you can now buy a cordless vacuum, which means you never have to worry about the cord getting tangled or sucked into the vacuum again (nor do you have to worry about your new puppy pretending the vacuum cord is a chew toy!).

Cordless vacuums also make it so that you never have to stop cleaning to unplug the cord, then replug it into a closer wall outlet, which can be super frustrating if you’re short on time and just need to get the job done in a flash. Most cordless vacuum models attach to a docking station for charging. Then, when you’re ready to clean your floors, you simply remove the vacuum from the docking station and start vacuuming. The Shark Ionflex Duoclean, for example, has a removable and rechargeable lithium-ion battery that lasts about 30 minutes before you’ll need to recharge it again, which many people say is enough time to vacuum several rooms in your home, depending on their size.

If you’ve never seen a cordless vacuum up close, you’ll notice that they look a bit different than a standard vacuum. Many of these vacuums are long and slender with a dirt bin and a motorhead on top. Others look very similar to a traditional vacuum cleaner with a cord. Some cordless vacuums can also easily become handheld vacuums by simply removing the motorhead from the vacuum stick, which makes for a quick and painless transition. Some cordless vacuums, like the Shark Ionflex Duoclean, have a rotating or swivel head that makes it easy to clean tough corners or get into tight spots, such as under the couch or the bed.

Cordless vacuums tend to be lighter and smaller than other vacuums, which makes them super useful if you’re short on time and just need to zip around to clean before guests arrive. They’re also helpful if you can’t lift heavy objects or your home has lots of stairs — no more lugging a heavy vacuum around.  Cordless vacuums also tend to take up less space than other vacuums, so they’re perfect for smaller spaces such as apartments and condos.

DWYM Fun Fact

You can thank NASA for your cordless vacuum — yes, NASA. The reason we have cordless vacuums in our homes today is because NASA needed a company to design a special drill so that Apollo astronauts could extract core samples from the moon in the early 1960s. Since they were on the moon with no power source, the drill had to be cordless, lightweight and small. NASA asked The Black & Decker Manufacturing Company to design something and the company pulled through by developing a battery-powered technology, which was the precursor to today’s modern cordless power tools and vacuums. Thanks NASA!

The Cordless Vacuum Buying Guide

  • One of the key factors you’ll want to consider when purchasing a cordless vacuum is battery life, since this will determine how long you can run your cordless vacuum before it needs to be charged. Cordless vacuums can run, on average, between 15 and 45 minutes between charges, depending on the type of vacuum and the setting you select. You won’t be able to use your cordless vacuum for very long if you select the highest-power mode, so keep that in mind when you start cleaning. For example, some models can run for up to 30 minutes, depending on which mode you’re using to clean your house.
  • Cordless vacuums typically use one of three types of batteries: lithium-ion, nickel-metal hydride and nickel-cadmium. Each battery type has its own pros and cons, and they all have varying levels of power, shelf life, replacement cost and charge capacity. Lithium-ion batteries, for instance, tend to be more expensive than nickel-cadmium batteries and you may have to be careful not to overcharge them. Generally speaking, nickel-cadmium batteries tend to need to be replaced more often than the other types, while nickel-metal hydride batteries are more expensive but they hold a lot of power from each charge. Typically, your battery will not be covered under a limited warranty if it fails because of normal wear and tear. Over time, you can likely expect to have to replace the battery for your cordless vacuum.
  • You’ll also want to consider the weight of the vacuum. If being lightweight is important to you, you’ll want to take a look at the product specs for each cordless vacuum. They typically range from 2 to 7 pounds.
  • Most cordless vacuums come with washable filters, which means you’ll need to keep an eye on how dirty this filter becomes and clean it periodically to keep the vacuum running properly.
  • Cordless vacuums come with an array of accessories and attachments. Some of the most common accessories are crevice cleaners, mini brushes and extension heads. The Shark Ionflex Duoclean, for examples, comes with a duster crevice tool, a dusting brush, a wide upholstery tool, an anti-allergen dust brush, a battery and a charger.