Have a question about indoor air quality? Our team of experts have answered questions received from customers. If you can’t find the question you’re looking for, scroll to the bottom and ask!
Where is Carolina Filters located?
Carolina Filters has three locations throughout South Carolina. CFI is headquartered in Sumter with two branches in the Columbia and Greenville area. Find out more information about our locations here.
Are you hiring?
Visit our Careers page for current job openings!
How often do air ducts need to be cleaned?
According to the NADCA ACR 2013 HVAC Cleanliness Inspection
Schedule, the air handling unit, supply duct, return and exhaust ducts
for commercial, industrial and healthcare facilities should be
inspected each year. For more FAQ’s on air duct cleaning, download our free Industrial Air Duct Cleaning guide for professional answers.
Don’t see the Q/A you are looking for? Contact us today and an indoor air quality expert will answer your questions!