A clean-up should happen when you move to a new house,

particularly if the previous owners were a smoker, a pet owner,

or did not service your ducts in the past three years. Air ducts in apartments and homes

should be inspected and cleaned, ideally, every 2 years.

The HVAC system and ductwork in commercial properties should be checked every year,

since they are spread out across a wide area, occupied by multiple people at any given point.

Dirty ducts can lead to serious health problems, become homes to unwanted vermin,

degrade the air quality of the house, and increase your utility bills.