Warmer spring weather is a relief after a long winter — but for the significant portion of the population that deals with seasonal allergies, spring also brings weeks of elevated pollen, mold spores, and other airborne irritants. Your HVAC system plays a direct role in how much of that makes it into your living spaces. Here is how to optimize your system before allergy season peaks.
Tips on Prepping Your HVAC System for Allergy Season
Schedule Spring HVAC Maintenance
A professional spring tune-up cleans system components that accumulate allergens over the winter, tests airflow, and ensures the system is operating efficiently before the high-demand summer season. Total Comfort Solutions recommends maintenance twice yearly — spring and fall — to keep both the heating and cooling sides of the system in good condition. The Total Comfort Solutions maintenance plan includes a comprehensive inspection at each visit, reduced diagnostic fees, and a parts replacement guarantee.
Upgrade Your Air Filter for Allergy Season
Standard filters are rated MERV 8 — adequate for basic dust removal but not optimized for allergen capture. Upgrading to MERV 11 or 13 for allergy season significantly improves capture rates for pollen, mold spores, dust mites, and pet dander. Filters rated above MERV 13 are designed for medical and industrial environments and restrict airflow in most residential systems — stay within the range your equipment is designed to handle.
Consider an Extended Media Filter
An extended media filter is installed inside the return ductwork and treats all air passing back through the system — not just air at individual vents. These filters use multiple filtration layers to address different types of allergens, and some include an activated carbon layer to manage odors as well. Plan to replace the media filter every six months.
Install a Whole-Home Dehumidifier
High humidity is an allergen accelerator. Dust mites thrive above 50 percent relative humidity; mold growth is significantly more common in humid environments. A whole-home dehumidifier installed in the ductwork maintains consistent indoor humidity levels set from the thermostat, making the home less hospitable to common allergen sources throughout the season.
Consider UV Germicidal Lights
UV lights installed in the HVAC system disrupt the DNA of biological allergens, preventing reproduction. Two types serve different purposes: coil-sanitizing UV lights mount above the evaporator coil and prevent mold and mildew growth on the coil itself; air-sanitizing UV lights install in the return ductwork and treat circulating air. Both types are particularly valuable for allergy sufferers because they address allergens that standard filters cannot capture.
Have the Ductwork Cleaned
Pet dander, dust mites, and accumulated debris in ductwork reduce air quality and restrict airflow. Total Comfort Solutions recommends professional duct cleaning every three years. If it has been longer than that, spring — just before pollen season peaks — is a practical time to schedule it. Pair duct cleaning with a sealing service approximately every 10 years to close any air leaks that allow outdoor debris to enter the duct system.
Seal Exterior Air Gaps
The beginning of spring is an ideal time to seal gaps around door frames, window frames, electrical outlets, and light switches on exterior walls. These gaps allow outdoor allergens to bypass your filtration system entirely. Weatherstripping, caulking, foam insert pads, and spray foam are the appropriate materials depending on the location and gap size.
Allergy Vent Covers
Magnetic vent covers attach over supply registers and provide an additional filtration layer as air exits into rooms. They are a cost-effective supplement to your main filter for households with severe allergy concerns. Wash or replace them regularly to maintain effectiveness.
Additional Allergen Reduction Steps
- Vacuum frequently using a HEPA-filter vacuum
- Wash bedding at least once weekly — this is the most effective step for controlling dust mites
- Bathe pets frequently and brush them outdoors
- Use low-pile rugs or hard flooring where practical — high-pile carpet holds allergens more effectively
- Wipe surfaces with a damp cloth rather than dry dusting, which redistributes particles into the air
Total Comfort Solutions Heating & Air Conditioning provides indoor air quality consultation and service throughout New Britain and the surrounding area. Call us at (215) 323-5330 to discuss options for your home.