Quiet and powerful duct fan QUIET 250 for larger spaces

A quiet solution for greater ventilation demands

QUIET 250 is a 2-speed axial duct fan for installation in round air ducts, intended for supply or exhaust air. Thanks to its larger diameter, high airflow and sound-insulated housing, it is suitable for larger spaces, commercial kitchens, workshops and systems where performance matters without unnecessary noise.

Main advantages

• High airflow for more demanding systems
  With a maximum airflow of 1560 m3/h, it ensures efficient air movement where greater capacity is needed.
• Quieter operation in its class
  The sound-insulated EPP housing helps reduce noise and contributes to more pleasant operation in the room.
• Two fixed speeds for easy adjustment
  The mechanical speed switch allows easy selection between low and high operating levels.
• Reliable motor with a longer service life
  Ball bearings contribute to less vibration and quieter operation and support long-term use.
• Protection that automatically resets after cooling
  The thermal protection automatically restarts the fan after the motor cools down, so there is no need to replace a fuse.

Installation

The fan is installed directly into a round air duct, where it creates a tight and airtight connection to the ventilation system. Such in-line installation is simple and does not require a special wall mount, making the solution suitable for new systems or upgrades of existing ducts.

Technical specifications

Frequently asked questions

Is the fan suitable for larger spaces?
Yes. Thanks to its 250 mm diameter and airflow of up to 1560 m3/h, it is suitable for larger spaces, commercial kitchens, workshops and similar more demanding ventilation systems.

How is the fan installed?
It is installed in-line, directly into a round air duct. The connection to the ductwork is airtight, and no additional wall mount is required.

Is the operation noisy?
At maximum speed, the noise level is 36 dB(A). The sound-insulated EPP housing helps ensure quieter operation relative to the unit’s performance.

Which ducts is it compatible with?
The fan is designed for installation in round ducts with a diameter of 250 mm.

Conclusion

QUIET 250 is a practical choice for anyone who needs greater airflow, reliable operation and easy installation in a duct system. It is a balanced solution for larger residential and commercial ventilation requirements.