Polyester sofa fabric on sofas generally requires regular maintenance to keep it in good condition. While it is a durable and easy-to-care-for fabric, there are a few guidelines you can follow to ensure its longevity:

Regular cleaning: Vacuum the sofa regularly to remove dust, dirt, and debris. Use a soft brush attachment to prevent any damage to the fabric.

Immediate stain removal: Treat spills and stains as soon as they occur. Blot the area gently with a clean cloth or paper towel to absorb the liquid. Avoid rubbing the stain, as it can cause it to spread. If needed, use a mild detergent or upholstery cleaner specifically designed for polyester fabrics. Test the cleaner on a small, inconspicuous area first to ensure it doesn't cause any discoloration.

Spot cleaning: For localized stains or soiling, you can use a mixture of mild detergent and warm water. Apply the solution to a clean cloth and gently blot the affected area. Rinse the cloth with clean water and continue blotting until the stain is removed. Then, blot the area with a dry cloth to remove excess moisture.

Avoid harsh chemicals: Polyester fabrics can be sensitive to strong chemicals, bleach, and solvents. Avoid using these substances, as they can cause discoloration or damage to the fabric.

Preventive measures: To minimize wear and tear, consider using armrest covers or throws to protect high-contact areas. Rotate cushions periodically to distribute the wear evenly.

Professional cleaning: While regular maintenance can keep your polyester sofa clean, it's a good idea to have it professionally cleaned every once in a while. Professional cleaners have the expertise and equipment to deep clean and remove stubborn stains without damaging the fabric.

Always refer to the manufacturer's instructions or care label attached to your sofa for specific guidelines on maintenance and cleaning. These guidelines may vary depending on the specific type of polyester fabric used in your sofa.