Clean the air in your home and protect your HVAC system with one of these top-performing air filters from CR’s testsThicker filters do their job better and require less frequent replacement, but ...

Low-cost, DIY air purifiers are proving to be just as effective as expensive commercial units at protecting indoor spaces ...

When wildfires threaten people's communities, human health is impacted far beyond the inferno. Residual smoke distributes in ...

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But not every HVAC system can accommodate a thicker filter—the most common size is 1 inch thick—though you can retrofit the ductwork of some systems to accept one. Something else to keep in ...