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A recent survey of underhood services revealed that 49% of cabin air filters are sold in the spring. The increase in pollen counts coupled with the benefits of cabin air filters for allergy sufferers make this a pretty easy sell. Arguably, however, winter is the most important season to replace a vehicle’s filter. There are three main reasons to replace a cabin air filter in the winter. When cars idle on cold winter mornings, exhaust fumes can pump in harmful emissions that harm the driver’s respiratory systems. Particulate matter is the most harmful component of tailpipe emissions. Particles emitted by vehicles range in size from two microns to 10 microns in diameter and can aggravate the lungs when inhaled. Particulate emissions from a vehicle’s tailpipe are highest when the engine is cold. Scientists have found that particulate emissions increase exponentially as the temperature decreases, according to a study of Kansas City light-duty vehicle emissions.
In fact, this study found that particulate emissions doubled for every 20 degrees Fahrenheit drop in temperature. The only thing that can prevent exhaust particles from reaching vehicle occupants is a cabin air filter. Some cabin air filters can even stop particles as small as one micron in diameter. In the winter, the benefits of a clean air filter are easy to see. Clogged cabin air filters can limit defroster performance, making it harder to see through the windshield. If a cabin air filter becomes clogged, it will create a restriction that will decrease the amount of hot air the fan can deliver to the windshield, which decreases visibility and increases the time it takes to defrost the window.
After months of battling heavy pollen, dust, leaves, bugs and other debris, winter is the perfect time to give a customer’s cabin air filter a fresh start. This debris builds up, restricting airflow through the filter and causing heating and cooling problems. With no leaves, pollen, or insects to contend with for the next few months, replacing the cabin air filter in the winter will immediately resolve heating issues and help prevent cooling issues once spring arrives. come.
This video is sponsored by FRAM.