Do You Know What Causes Fall Allergies and How HVAC Helps?

While most people are familiar with the connection between airborne pollen and spring allergies, what causes fall allergies is often less clear. Actually, fall is the second-most-common time of the year for physical symptoms triggered by natural airborne particulates. During autumn, what causes fall allergies is traditionally known as “hay fever.” However, that general designation usually refers to allergic reactions to ragweed — a common, widespread flowering plant that releases pollen beginning in mid-August and generally continues until the first hard freeze.

Because hay fever results from an airborne pollen, your home’s HVAC system can be a helpful ally to reduce allergic reactions inside the home. Here are some ways to reduce the pollen count indoors during the coming season, eliminating what causes fall allergies.

  • Change the system air filter. Install a new air filter to efficiently trap airborne pollutants, including pollen. Choose a filter made of pleated cotton or polyester that has a MERV (Minimum Efficiency Reporting Value) rating around 8. This provides the best balance between maximum filtration efficiency and proper system airflow. If allergies are common in your household, replace the filter every month.
  • Schedule annual preventive maintenance. A checkup of all HVAC functions prepares your system for winter heating season and also supports healthy indoor air quality, including maximum airflow and efficient filtration. Most HVAC warranties require regular annual maintenance by a qualified HVAC contractor to ensure full coverage.
  • Consider high-efficiency filtration. If allergies are an annual misery, you may want to consider taking indoor air filtration to the next level. A HEPA-grade filtration unit can be added to your HVAC ductwork to provide a higher standard of indoor air filtration, removing airborne particulates as small as 0.3 microns. These units support optimum indoor air quality with high-efficiency filtration of all airflow that’s circulating throughout the house.

For professional advice about what causes fall allergies and ways that your HVAC system can help eliminate airborne sources, contact Paitson Bros. We’re in our 100th year of ensuring optimum comfort and healthy indoor air quality for residents of the Wabash Valley.

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