Ventilation duct panels come in a variety of types, which can be classified according to material composition, structural configuration, or intended application. The following provides an overview of the main types, based on common classification schemes.

　　Metal duct panels: Primarily made of metal materials, they feature high strength and excellent durability, and mainly include:

　　Thin‑steel‑sheet ductwork: Examples include ordinary thin steel sheet (Q235B steel) and galvanized steel sheet. These materials are relatively low‑cost, with galvanized sheet offering superior corrosion resistance, making them suitable for standard ventilation systems.

　　Stainless steel ductwork: corrosion-resistant and high-temperature resistant, suitable for specialized environments such as chemical and pharmaceutical industries.

　　Aluminum ductwork: lightweight, explosion‑proof, and acid‑resistant; suitable for environments with explosion‑proof or lightweight requirements.

　　Composite steel‑plastic ductwork—such as plastic‑composite steel sheet—combines a metal substrate with a plastic layer, offering both corrosion resistance and ease of fabrication, making it suitable for cleanrooms or environments sensitive to temperature and humidity.

　　Non-metallic ductboard: Primarily made of non-metallic materials, it is typically lightweight and corrosion-resistant, and generally includes:

　　Plastic ductwork: such as polyvinyl chloride (PVC) sheets, which are resistant to acid and alkali corrosion and suitable for conveying corrosive gases.

　　Composite ductwork—such as phenolic, polyurethane, or fiberglass‑reinforced plastic ducts—offers excellent thermal insulation and easy installation, making it ideal for applications requiring energy efficiency or low noise levels.

　　Structural ductwork—such as brick or concrete airways—is commonly used in large buildings or permanent installations. It is cost-effective but relatively complex to install.

　　Insulated ductboard: Specifically designed for thermal insulation, it typically consists of a core material and a facing layer, and primarily includes:

　　Integral insulated ductwork—such as glass-magnesium ducts—features an internal insulation layer, offers excellent fire resistance, and is suitable for smoke control and exhaust systems.

　　Composite insulated ductwork: can be assembled on-site, offers stable thermal insulation performance, and is suitable for HVAC systems.

　　Classification by cross-sectional shape: Duct panels can also be categorized into circular, rectangular, and flattened‑round shapes. Among these, rectangular ducts are the most widely used due to their high space‑utilization efficiency, while circular ducts offer lower airflow resistance but are more complex to fabricate.