I had no idea how much dirt could pile up in the vents until I looked into condo duct cleaning. I came across this site, [[ https://comfortclean.com/facts-about-condo-duct-cleaning/ | https://comfortclean.com/facts-about-condo-duct-cleaning/ ]], and it really opened my eyes. It explains how dust and allergens can just keep circulating if the ducts aren’t cleaned. I’m planning to get mine done soon because I’ve been sneezing way more than usual lately