Reviews for air purifiers in 2013 are available on Top-Air-Purifier-Reviews.org as well as on The New York Times website. Top-Air-Purifier-Reviews.org rated units based on spec sheets, values, maintenance and replacement costs, and consumer feedback. Steven Kurutz of The New York Times focuses on the unit's ability to alleviate allergy symptoms.
Top-Air-Purifier-Reviews.org rated the Alive Air Purifier as the best new machine in 2013 with an overall score of 91 out of 100. It removed almost all particles from the air and eliminated the majority of germs and bacteria. It was also quiet and easy to use. It removed odor efficiently and offered excellent value for the 2013 price of $299 to $349.
Kurutz tested six different air purifiers and refrains from naming any one of them as the best overall. Instead, he presents the pros and cons of each. For example, he states that the CritterZone was the most effective at handling the odor of a litter box but left behind a chemical smell and produced ozone, while the Airocide may have helped lessen his allergic reactions. He mentions that the Honeywell AirGenius5 is quiet, easy to use, and effective, but it requires frequent filter changes.
The benefits of air purifiers are difficult to prove, so Kurutz cautions against believing companies that claim they improve health. Instead, when perusing reviews, consumers should focus on the most important quality, which is an air purifier's ability to remove particles from the air.