Shopping for an air purifier? Read about types, features, and other must-know topics in our air purifier buying guide to make an informed choice.

Consumer Reports explains why the Molekule Air and the Molekule Air Pro don't measure up to the hype—and reveals which models to consider instead.

We've tested and reviewed products since 1936. Read CR's review of the AirDoctor AD3500i air purifier to find out if it's worth it.

We've tested and reviewed products since 1936. Read CR's review of the Whirlpool WPT80B air purifier to find out if it's worth it.

Compare the top air purifier brands ranked from worst to best, based on Consumer Reports' ratings for satisfaction, reliability, and performance.

We've tested and reviewed products since 1936. Read CR's review of the Honeywell HPA180B Insight air purifier to find out if it's worth it.

We've tested and reviewed products since 1936. Read CR's review of the TaoTronics TT-AP002 air purifier to find out if it's worth it.

In its labs, Consumer Reports injects contaminants like smoke and dust into a controlled chamber to measure how well air purifiers reduce particle levels.The top-performing purifier in Consumer ...

We've tested and reviewed products since 1936. Read CR's review of the Holmes Allergen Remover air purifier to find out if it's worth it.

The best air purifiers can remove particles at any speed setting, says Misha Kollontai, who oversees air purifier testing for Consumer Reports.