Why Is Air Quality Worse in the Fall and Winter?
As the temperature changes and fall and winter are ushered in, the air quality falls. You’ve likely already changed your GE, LG, or Samsung refrigerator water filter recently, but now would be a good time to check your furnace and air filters, as well. Below are a few of the reasons why air quality can decrease in the fall and winter months—all of which speak to the importance of having a properly functioning air purifier and HVAC system indoors. The Inversion Layer In the fall and winter, a warm layer of air, called the inversion layer , can rise above a cooler layer of air. Normally, air temperature decreases at higher altitudes. In the colder months, however, a cold layer of air can become trapped near the ground, and the warm layer above it keeps the air from moving. Inversion layers are more common in cities located near the mountains or in a valley. Inversions prevent smoke, dust, and other pollutants from moving upward, trapping them close to the ground and