FEATURED MEDIA: NADCA’s ‘How Your Heating & Cooling System Got Dirty’
NADCA’s rule of thumb for consumers is that “if your ducts look dirty, they probably are,” and that “dirty HVAC systems should be inspected by a reputable, certified HVAC professional”.
Indoor air quality is one concern that homeowners have when they decide to investigate air duct cleaning. In a typical home, up to 40 pounds of dust is created annually through everyday living.
Your heating and cooling system is the lungs of your home. Read More from http://nadca.com/en/why-clean-air-ducts