Why does indoor air quality drop in winter and how does duct cleaning help?
My kids always develop dry coughs and stuffy noses as soon as we close up the windows and start running the heat for winter. Apart from changing the furnace filter, what steps can we take to improve our home's indoor air quality before we seal the house up for the cold months?
During winter, Canadian homes are sealed tight to preserve heat, trapping indoor pollutants, household dust, pet dander, and airborne allergens inside the air cycle. Professional air duct cleaning physically extracts built-up debris from supply and return channels, reducing circulating dust levels and improving overall indoor air freshness throughout the enclosed winter season.
Once you seal up the house for the winter, your HVAC system continuously recirculates whatever dust, dander, and pollen is trapped inside your ductwork. Understanding indoor air quality before winter — why duct cleaning matters made a massive difference for our family's health. Having Comfort Clean thoroughly purge our supply and return vents before turning on the furnace stopped that stale winter air feeling, kept our home significantly dust-free, and made breathing much easier for everyone all season long.