Are you thinking about the level of cleanliness of your home’s air ducts?
Is this something that gets dirty and should be regularly cleaned?
Are there health risk to dirty air ducts?
Chronic Sickness If you and your family are suffering from constant allergies or chronic sickness that is made worse at home then it is possible that there is something in your HVAC system that needs resolution. Air duct cleaning in this case is a good way to at least rule this out as an issue.