Although bad indoor air quality can be a problem during any season, it can affect you more severely during the fall season. Fall comes with high humidity levels. While temperatures begin to cool down during fall, humidity does not evaporate from the air. So much so that many fall days feature humidity levels up to 100 percent. While you may not mind the feel of high humidity levels, the excessive humidity in your home may provide a conducive environment for mold and other allergens to grow and thrive. This may pose great harm to people who suffer from allergies and other breathing issues. Not only that, but these allergens circulating in your air can also cause multiple respiratory problems. Your indoor air in the fall season also suffers from airborne contaminants. These contaminants are mainly caused by excessive humidity in your home. Investing in a standard HVAC system provides a powerful defense against bad indoor air quality. Indoor air quality during summer suffers fluctuating temperatures. Typically, fall is the most confusing time of the year; with cold mornings, hot afternoons, and anything in between, it is hard to predict what the temperature will be like at any given time of day. It is challenging for homeowners to rely on manual thermostats, as you’ll constantly be switching back and forth between cooling and heating and ensuring that your thermostat is reset when you leave your home for the day. This may easily strain your HVAC system, resulting in poor performance and low indoor air quality. Indoor air may also suffer from poor air circulation during fall, resulting from too tight building envelopes or improperly sized HVAC systems.