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What to look for when you’re buying a robot vacuum cleaner

Technology is most helpful when it makes daily tasks easier and more efficient, and that’s most certainly the case with robot vacuum cleaners. It’s especially true if you’re in a climate that lends itself to lots of dust on your hard-surfaced floors or in your carpet.

Robot vacuum cleaners typically retail from $100 to about $700, and if you’re interested in having your home swept and vacuumed daily with little effort on your part, it’s a great investment. Here’s what to look for if you’re shopping for a robot vacuum cleaner.

Battery life
The best robot vacuums can run for two hours or longer. That’s particularly important if you have a big place—you don’t want to have to keep recharging your vacuum between cleanings. It’s especially convenient if you have a vacuum that can automatically dock and recharge between uses.

Cleaning patterns
Simpler, more inexpensive vacuums may only clean in a random or back-and-forth pattern, while more advanced vacuums can virtually map a room for more precise cleaning. It’s also better if the vacuum is capable of making multiple passes in its pattern, as it’ll lead to a more thorough cleaning job.

Size and design
Most robot vacuum cleaners are no more than four inches tall, so they can move under furniture. Still, pay attention to the height of your vacuum and the clearance of your furniture, so that you don’t end up with a vacuum that can’t get to important spots. Also, consider your floor type—some vacuums are better-suited for hardwood floors and tile, while others are better for carpeted floors.

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