Outdoor sofa cushions are prone to developing a musty smell due to moisture, mold, and mildew. Here are some effective ways to keep them fresh and odor-free:

1. Store Cushions Properly: When not in use, store cushions in a dry, well-ventilated area. Use waterproof storage bags or bins to protect them from rain and humidity.

2. Clean Regularly: Wash cushion covers with mild soap and water, and let them dry completely before reassembling. For removable foam inserts, air them out in the sun to kill bacteria.

3. Use Moisture-Wicking Covers: Invest in breathable, quick-drying cushion covers to reduce moisture buildup.

4. Apply Vinegar or Baking Soda: Spray a mixture of white vinegar and water to neutralize odors, or sprinkle baking soda to absorb moisture and smells.

5. Rotate and Air Out: Flip and rotate cushions frequently to ensure even drying and prevent damp spots.

By following these steps, you can enjoy fresh, clean outdoor cushions all season long!