From the blog

NADCA’s rule of thumb for consumers is that “if your air ducts look dirty, they probably are,” and that dirty HVAC systems should be...

National Indoor Air Quality Awareness Month is observed annually in October. This month is dedicated...

When it's time to service your heating, ventilation, and air conditioning (HVAC) system at hom...

You've switched to energy-efficient lightbulbs, installed Energy Star® appliances and sealed drafty windows and doors, all in the name of...

It is generally agreed that source removal of contaminants remains the single best method for cleani...

There are plenty of factors that affect the quality of the air inside the home—from pets to re...

One of the critical aspects of HVAC systems is energy consumption and the roles that HVAC engineerin...

NADCA's 2017 Fall Technical Conference is being held September 14-16 in St. Louis, Missouri. Duc...

Since 1985 Duct Doctor has been improving the quality of indoor air in homes and in the workplace. T...