Why Carpet Gets Dirty Around Air Vents: Causes, Black Stains, and Cleaning Tips
Carpets near air vents get dirty because contaminants from the ventilation system spread through the air. The carpet acts like a filter, trapping dirt and dust. You will see dirt accumulation in room corners and spots with restricted airflow, showing evidence of filtration soiling from the dirty air circulating in your home. Another significant contributor … Read more