GoKawiilTo help inform our air purifier picks, we gathered 12 of the newest and most popular models at the CNET Labs product testing facility in Louisville, Kentucky, where we put them through a rigorous set of tests.
When evaluating our scores for air purifiers, we took into account particle removal ability, energy efficiency, loudness, price and features. Each unit is given a score out of 10 for each criterion, then receives a weighted final score out of 10.
After we test air purifiers, we also evaluate the top performers for an Editors' Choice award as the best purchases for most consumers. The evaluation is based on quantitative and qualitative factors, such as particle removal, energy efficiency, noise level, price and unique features. We also evaluate purely quantitative test results from our rigorous methodology to determine a Lab Award winner. In this case, we have two lab award winners for particle removal at different fan speeds.
How we evaluate air purifiers:
Particle Removal (30%): The average amount of time it takes for an air purifier to remove 90% of the particles from our test chamber.
The average amount of time it takes for an air purifier to remove 90% of the particles from our test chamber. Energy Efficiency (20%): The average energy measured in kilowatt hours used by the air purifier; we also calculate it over the course of a month.
The average energy measured in kilowatt hours used by the air purifier; we also calculate it over the course of a month. Overall Loudness (20%): The average noise level across low, medium and high fan settings.
The average noise level across low, medium and high fan settings. Price (20%): We consider how affordable or expensive an air purifier is. Most of our recommendations range between $300-$800, depending on size.
We consider how affordable or expensive an air purifier is. Most of our recommendations range between $300-$800, depending on size. Features (10%): We consider features like app control, remotes and design elements that help it fit into a room.
The particle-removal test
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