Outdoor sofa cushions are prone to developing musty or decontaminated smells due to moisture, mold, and lack of proper care. Here are some effective ways to keep them fresh and odor-free:

1. Regular Cleaning: Wash cushions with mild soap and water every few weeks. Use a brush to scrub off dirt and let them dry completely in the sun.

2. Proper Storage: Store cushions in a dry, ventilated area when not in use. Avoid leaving them outside during rainy or humid weather.

3. Use Waterproof Covers: Invest in waterproof cushion covers to protect them from rain and dew, which can lead to mold growth.

4. Deodorize Naturally: Sprinkle baking soda on cushions, let it sit for an hour, then vacuum it off. This neutralizes odors without harsh chemicals.

5. Ensure Good Airflow: Avoid stacking cushions when storing them. Use a breathable storage bag or shelf to allow air circulation.

6. Sun-Dry Frequently: Sunlight kills mold and bacteria. Place cushions in direct sunlight for a few hours monthly to keep them fresh.

By following these steps, you can enjoy clean, pleasant-smelling outdoor cushions all season long.