we focused on those that use high-efficiency particulate air (HEPA) filters, the gold standard for removing particles like dust, smoke and pet dander from the air; some of these devices also use ...

If you want the cleanest air possible, your air purifier has to be in the right spot. Here’s the ideal location.

These clarifying devices draw in air pollutants, trap them with filters, and disseminate clean air back into your space. A HEPA filter is theoretically rated to capture at least 99.97 percent of ...

Learn more. In our tests, we gauge how well an air filter removes dust, pollen, and smoke from the air, and see how freely air flows through the filter at any fan speed. We also calculate the ...

To combat hay fever or pet allergies, your air purifier should be equipped with a High Efficiency Particulate Absorbing (HEPA) filter. "These filters can remove up to 99.97% of small airborne ...