In small apartments, air circulates less and fabrics absorb odors faster because furniture is closer to kitchens, windows, and daily activity. I ran into this problem too and realized frequent light cleaning wasn’t enough. Professional upholstery cleaning services in Chicago helped because they target what builds up inside the fabric, not just what’s visible. I used Chicago Couch Cleaning https://chicago-couchcleaning.com/ and noticed the apartment smelled cleaner overall, not just the couch. Their extraction process removes trapped odors that linger in compact spaces. In small apartments, deep upholstery cleaning often improves the entire indoor environment.