Optimized airflow performance: This 160 mm round backdraft damper is expertly engineered to promote smooth airflow while preventing reverse air entry, ensuring effective ventilation and control. Tool-free installation: Designed for user convenience, this damper can be installed quickly in your ventilation system without tools. Applications and compatibility: Ideal for use in fan ducts, piping projects, and a variety of ventilation setups. Helps maintain correct airflow direction across different systems. Use scenarios: - Residential bathroom exhaust duct: prevents backflow when the fan is off, keeping conditioned air inside. - Office HVAC duct network: stops reverse airflow between zones to maintain ventilation effectiveness. - Industrial or workshop ventilation: supports steady airflow in ducting with variable pressure.