Posts Tagged: cabin air quality
When to Use the Car Air Recirculation Button
When to Use the Car Air Recirculation Button—and When You Shouldn’t Quick Summary The car air recirculation button is one of the most misunderstood controls on your climate panel. When the air recirculation button is off, your HVAC system defaults to bringing in about fresh air. In that mode, about 15% of the air blowing through the ducts is fresh air, with 15% of the stale air exiting the vehicle through vents behind the rear seats. Fresh air reduces the risk of CO2 buildup in the cabin and eliminates the … Read More
When to Replace a Cabin Air Filter
When to Replace a Cabin Air Filter Based on Real Driving Conditions Quick Summary Carmakers often list a change interval for the cabin air filter. The problem with those recommendations is that no carmaker knows how often you use your HVAC system or how dusty/dirty your driving environment is. In other words, it depends on how and where you drive. Performing a visual inspection, along with sensing a reduced airflow, musty odors, louder blower noise, and worsening allergies, are your best indicators. Ignoring it doesn’t just affect air quality; it … Read More