Spring Allergies and HVAC Maintenance

The spring season brings warm temperatures and beautiful blossoms. Unfortunately, allergies are also part of the transition from winter to spring. HVAC maintenance should be done on a seasonal basis to improve air quality inside the home. Allergens from the outside might find their way into the ducts and vents of residential heating and cooling units. Here’s an overview of some important HVAC services that should be done in preparation for the spring.

Professional Duct Cleaning

Ducts in a typical residential HVAC system are prone to accumulation of dust, debris, and other harmful contaminants. Normal variations in moisture and temperature further contribute to the problems inside heating and cooling ducts. For example, high humidity stimulates the growth of mold, mildew and other toxic organisms that cause respiratory problems. A professional HVAC company uses powerful vacuums and other suction tools to remove dust and pollen from the interior surfaces of ducts.

It’s also important to seal any leaks in the ducts that contribute to continuous penetration of airborne contaminants. For instance, pet dander and human hair particles tend to penetrate leaky HVAC systems. During a duct cleaning, it might also be necessary to apply disinfecting agents directly to the internal surfaces of ducts that have been previously covered in thick layers of dirt, dust, and mold. After successful cleaning of ducts and vents, professional HVAC technicians might conduct airflow tests to ensure that there aren’t any other obstructions.

Duct Sealing (Aeroseal)

Repairing and patching leaks in HVAC duct systems saves cooling, heating, and fan energy. In air-based systems, ducts deliver all of the heating and cooling to conditioned spaces. Any duct leakage translates into the extra air that must be supplied so sufficient heating or cooling reaches the conditioned space. This not only increases effective heating and cooling loads, but it also increases fan energy due to increased flow and/or runtime. Sealing duct leaks reduces the amount of heated or cooled air the supply fan must handle to deliver the same amount of air to the conditioned space.

Air Quality Control

Fortunately, there are several effective solutions for eliminating such contaminants that can irritate people who have allergies during the spring season. UV filters use powerful radiation to destroy bacteria and viruses that thrive in enclosed spaces, such as ducts and vents. Some sanitizing tools use electrostatic technology to trap dust, pollen, and other debris. UV and sanitizing filters must be plugged into a power outlet for continuous operation.