In addition to keeping you comfortable and your house more energy efficient, your HVAC system can be an ally to alleviate allergens in the air. Today’s tightly sealed homes save money on utility costs and give you greater control over indoor temperatures. However, there’s a downside to that environment: Airborne allergens can accumulate at higher levels inside an enclosed house. In fact, the presence of certain allergens indoors can be much more concentrated than the air outdoors.

Well-maintained, fully functional HVAC components can help alleviate allergens that may be the source of annoyance and even illness to occupants of the home. Here are some examples of components that can help alleviate allergens:

Air filtration. The entire volume of air inside your home passes through the HVAC system’s air filter multiple times each day when the air conditioner or furnace is operating. This continuous filtration helps control airborne particulates that can cause allergic reactions. Two caveats should be kept in mind:

• A dirty filter is less efficient at capturing particulates, including allergens. Consult a professional HVAC contractor to determine how often the air filter should be replaced with a new filter.
• Also, establish which type of filter and efficiency rating is correct for the size of your HVAC system and the airflow volume.

Check the ducts. Have the HVAC ductwork inspected for an accumulation of dust, dirt, and other airborne particles that may continuously recirculate through living spaces.

Control temperature and humidity. HVAC thermostat settings should maintain indoor temperatures below 75 degrees to discourage mold growth that releases airborne spores, which are a common trigger of allergic responses. Also, keep indoor relative humidity levels below 50%.

Reduce air infiltration. Identify and seal any structural openings — such as gaps around exterior doors and windows — that allow infiltration of outdoor air that may carry allergens into the house.

Indoor Air Quality Products. Your HVAC professional can provide air purifying solutions to aid with harmful allergens in the home.

Schedule professional maintenance. Bi-Annual maintenance tune ups by a qualified HVAC technician ensures heating and cooling components, as well as ancillary system parts, are operating up to the manufacturer’s specifications for optimum air quality.

For more advice about how your HVAC system can help alleviate allergens in your home, talk to the air-quality professionals at Jackson & Sons.