About Clean Air Review

Clean Air Review publishes buying guides and comparisons for home air care: air purifiers, humidifiers, dehumidifiers, and air fresheners. Each guide answers two questions: which unit fits your room, and what it'll cost to run.

What we cover

We cover the devices that change the air in a home, from a bedroom purifier to a basement dehumidifier. Guides are grouped by product type and by problem, such as allergies, dry winter air, or a damp basement.

Our approach

We start with published numbers: CADR, coverage in sq ft, decibel ratings, and energy use. Where a model is listed by AHAM, CARB, or ENERGY STAR, we check the claim against that listing. Then we look at what the spec sheet leaves out, like filter prices and how loud the unit is on the setting you'd use. We don't run lab tests ourselves, and when a figure comes from the manufacturer, the guide says so.