## Importance of Material Selection The material used in ventilation ducts directly affects the lifespan, performance and maintenance costs of the system. Let's examine the differences between two common options: galvanized and stainless steel. ### Galvanized Steel Ducts **Advantages:** - Economical price - Easy availability - Sufficient corrosion resistance (under normal conditions) - Easy workability **Disadvantages:** - Risk of rusting in humid environments - Not durable in acidic/basic environments - Not suitable for areas requiring hygiene **Ideal Applications:** - Office buildings - Residences - Warehouse and logistics facilities - General purpose ventilation ### Stainless Steel Ducts **Advantages:** - Superior corrosion resistance - Hygienic surface - Long life (25+ years) - High temperature resistance - Aesthetic appearance **Disadvantages:** - High cost (3-4 times compared to galvanized) - More difficult workability **Ideal Applications:** - Food production facilities - Hospitals and laboratories - Pharmaceutical industry - Chemical plants - Swimming pools ### Cost Comparison | Criteria | Galvanized | Stainless | |----------|------------|-----------| | Material cost | 1x | 3-4x | | Labor cost | 1x | 1.5x | | Lifespan | 15-20 years | 25+ years | | Maintenance cost | Medium | Low | ### Conclusion Material selection should be based on the specific requirements of the project. Galvanized should be preferred for budget-limited and standard applications, stainless steel for special applications requiring hygiene and durability. We can help you choose the right material for your project.