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Arkfeld Ultra 3-in-1 flashlight (Save $59.99) $119.99

Rethink the flashlight with Olight's priority OAL aluminum alloy and 1400 lumens. | Read Review

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Dr. Dave Ellerby

Chief Scientist
dellerby@reviewed.com

Dave Ellerby has over 25 years of experience designing tests, analyzing data, and writing about science and technology.

At Reviewed and USA Today, Dave keeps the product test program current and tests air purifiers, mattresses, ranges, dishwashers, and fridges. Outside the lab, Dave writes product reviews and consumer ed content.

Dave has a Ph.D. in physiology from the University of Leeds and a B.Sc. in Ecology from the University of Manchester. After grad school, Dave worked at Northeastern University, Brown University, and Wellesley College, researching muscle performance and exercise physiology.

Articles & Reviews by Dr. Dave Ellerby

Coway Airmega Aim Review

We tested the Coway Airmega Aim.

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Is your air purifier in the best spot? Follow these rules

Here's where to put an air purifier in your home.

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Dyson Big+Quiet Formaldehyde Air Purifier Review

The new Dyson Purifier Big+Quiet Formaldehyde offers proven technology for larger spaces.

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Facts about gas and propane—according to our scientist

Learn all the facts, myths and differences about gas and propane.

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Powder, gel, or tabs: Which dishwasher detergent cleans best?

Tabs and gel pacs are top, but powder does something other detergents can't.

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Everything you need to know about dishwasher cycles

From normal to sanitize, here's how to choose dishwasher cycles.

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The Best Trash Bags of 2024

We put these trash bags through the wringer to find the best trash bag out there.

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How does a dehumidifier work?

Your dehumidifier is a must-have on humid days, but how does it work?

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