What are the best methods for preventing discoloration from air pollution on stone outdoor chairs?

Air pollution can cause unsightly discoloration on stone outdoor chairs, but with proper care, you can keep them looking pristine. Here are the best methods to prevent staining and maintain their natural beauty:

1. Regular Cleaning – Wash chairs weekly with a mild soap and water solution to remove pollutants before they settle. Avoid harsh chemicals that may damage the stone.

2. Sealant Application – Use a high-quality stone sealant every 6–12 months to create a protective barrier against pollutants and moisture.

3. Cover When Not in Use – Protect chairs with breathable covers during high-pollution days or prolonged periods of non-use.

4. Gentle Scrubbing – For existing stains, use a soft brush and a pH-neutral stone cleaner to avoid abrasion.

5. Avoid Acidic Cleaners – Vinegar or citrus-based cleaners can etch stone surfaces, making them more prone to discoloration.

By following these steps, your stone outdoor chairs will remain vibrant and resistant to air pollution damage for years.