Houston has one of the longest and most intense allergy seasons in the United States. Cedar pollen from December through February. Oak and grass pollen dominating spring and summer. Ragweed peaking in fall. Most Houston allergy sufferers are uncomfortable for the majority of each year.
Your HVAC System May Be Making It Worse
During peak pollen season, your system cycles dozens of times per day. Each cycle pulls pollen-laden air through return vents, across the evaporator coil, and through the air filter. While the filter captures larger particles, pollen grains smaller than the filter’s rating pass through and settle on interior duct surfaces, the evaporator coil housing, and inside the plenum box.
By the time peak season ends, your HVAC system contains a concentrated allergen reservoir that continues to release particles into your living spaces long after the outdoor pollen count has dropped.
Why Staying Indoors Does Not Help
Many Houston allergy sufferers notice symptoms do not improve when windows are closed. This happens because the indoor air their HVAC system circulates contains pollen and allergen particles accumulated over preceding weeks — being redistributed from inside the duct system.
The Solution
Professional NADCA-certified source removal cleaning eliminates the allergen reservoir from all 8 HVAC components: return ducts, evaporator coils, blower fan, heating chamber, plenum box, supply ducts, register boxes, and grills. The ideal time is early spring before peak pollen season, or immediately after a heavy season to eliminate the accumulated reservoir.
Most allergy sufferers report meaningful symptom reduction within days after cleaning, and the improvement persists through the season when filters are replaced on schedule.
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AH-CHOO! Indoor Air Quality serves Houston, Austin, San Antonio, and South Louisiana. NADCA certified. Average job time: 7 hours. 8 components cleaned every service. 38 years of experience.