These ventilation fan models use a sirocco fan driven by a capacitor motor. The motor is designed to have an extended service life with reduced energy consumption. The blower uses a high-capacity sirocco fan developed to reduce the noise level. The grille covering the main body is a spring-loaded, quick-dismount type. A damper for preventing counter-flow is provided.

These ventilation fan models use a sirocco fan driven by a capacitor motor. The motor is designed to have an extended service life with reduced energy consumption. The blower uses a high-capacity sirocco fan developed to reduce the noise level. The grille covering the main body is a spring-loaded, quick-dismount type. A damper for preventing counter-flow is provided.