Outdoor sofa cushions can sometimes develop an unpleasant rotten egg smell, often caused by mildew or trapped moisture. To prevent this issue, follow these simple yet effective tips:

1. Keep Cushions Dry: Always store cushions in a dry place when not in use. If they get wet from rain or spills, let them air dry completely before placing them back on the sofa.

2. Use Breathable Covers: Opt for cushions with breathable, water-resistant covers that allow air circulation while protecting against moisture buildup.

3. Clean Regularly: Wipe down cushions with a mild soap solution and rinse thoroughly. Avoid harsh chemicals that can damage the fabric.

4. Store Properly: During rainy or humid seasons, store cushions indoors or in a ventilated storage box to prevent mold growth.

5. Use Baking Soda: Sprinkle baking soda on cushions occasionally to absorb odors and moisture. Vacuum it off after a few hours.

By following these steps, you can keep your outdoor sofa cushions fresh and free from that dreaded rotten egg smell. Regular maintenance is key to prolonging their lifespan and ensuring comfort.