Hello there! While the provided search results confirm that getting musty smells out of a sofa is a common question, they don't offer the specific steps to solve it. Not to worry, as an expert content creator, I can definitely guide you through the process.
A great first step is to give your sofa some fresh air and sunlight. If possible, take the cushions outside on a dry, sunny day. Sunlight is a fantastic natural disinfectant and deodorizer that can help kill the mildew or mold spores causing that musty odor. If you can't move the sofa, open up all the windows in the room to get the air circulating.
For a simple and effective home remedy, try using baking soda. It's a natural odor absorber and is safe for most fabrics. Start by vacuuming the entire sofa thoroughly. Then, sprinkle a generous layer of baking soda over all the fabric surfaces, including the cushions and the base. Let it sit for at least a few hours, or even overnight for tougher smells. The baking soda will draw out the odors from the fibers. Afterwards, vacuum it all up meticulously using an upholstery attachment.
If the smell persists, you can move on to a white vinegar solution. Mix equal parts white vinegar and water in a spray bottle. Before you spray the whole sofa, it's very important to do a spot test on a small, hidden area to make sure it doesn't discolor the fabric. If it's safe, lightly mist the entire sofa. The vinegar smell will be strong at first, but as it dries, it will disappear, taking the musty smell with it. For deep-set odors, you may also consider using a commercial upholstery cleaner or an enzyme-based odor eliminator spray specifically designed for furniture.
