Mixolithophototrophic growth, commonly seen as algae or green mold, can quickly degrade the appearance and safety of outdoor seating. To combat this, regular cleaning with a mix of water and vinegar or mild bleach solutions is highly effective. For long-term prevention, consider using algae-resistant materials like treated wood, metal, or composite furniture. Additionally, positioning seating in areas with ample sunlight and airflow reduces moisture buildup, discouraging growth. Applying protective coatings or sealants can also create a barrier against algae. For severe cases, professional pressure washing or specialized anti-algae treatments may be necessary. By combining these methods, you can maintain clean and durable outdoor seating year-round.