The answer to 'why is my upholstery moldy' is that excessive moisture, poor air circulation, and lack of cleaning are the most common causes of mold growth on upholstery. Mold can develop on fabric, leather, and other upholstery materials if they are not properly maintained and dried after spills or cleaning.
Symptoms of moldy upholstery include visible mold growth, a musty odor, and discoloration of the fabric. Left untreated, mold can damage the upholstery and pose health risks. To prevent and address mold on upholstery, it's important to keep the area clean, dry, and well-ventilated. Regularly vacuum and spot clean upholstery, and address any moisture issues in your home.