Axial duct inlet-and-exhaust fan with fastening set BB D125

The PRO 5 is a 125 mm axial duct fan for continuous or timed extraction in bathrooms, toilets, kitchens, and utility rooms, or for balanced fresh-air supply when mounted the other way round. The ABS housing and impeller resist humidity, corrosion, and UV, and the ball-bearing motor is rated for up to 40,000 hours of continuous running - a genuine upgrade over the sleeve-bearing motors found in budget fans.

Key features

• Ball-bearing motor
  Rated for up to 40,000 running hours, backed by a 5-year warranty.
• Overheat protection
  A built-in thermal fuse cuts power before the motor can overheat.
• Strong, quiet airflow
  195 m³/h at 34 dB(A) and just 18 W - enough for a medium bathroom or open kitchen without excess noise.
• Dual-direction mounting
  Use it for exhaust or, reversed, for fresh-air supply.
• Fast duct installation
  Includes a matching fastening/mounting kit for a standard 125 mm duct spigot.

Technical specifications

Frequently asked questions

Will it fit my existing 125 mm duct?
Yes - PRO 5 is sized for standard 125 mm ducting and ships with a matching fastening kit.

Is PRO 5 strong enough for a larger bathroom?
With 195 m³/h of airflow it comfortably covers a medium-to-large bathroom or a kitchenette; for bigger spaces or longer duct runs, the 160 mm PRO 6 is the better fit.

A dependable mid-size choice when a 100 mm fan is not quite enough, without stepping up to the largest duct size.