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Silent Design 125

Whisper Quiet Kitchen & Utility Extractor Fan

The Silent Design 125 is a 125mm domestic axial extractor fans for wall or ceiling installations.

Ideal for kitchen and utility room ventilation, the Silent Design 125 extractor fan incorporates motors mounted on silent elastic blocks to deliver incredibly silent running with exceptional performance. 


Key Features

  • Quiet Operation
    Quiet Operation
  • Adjustable Humidity Sensor
    Adjustable Humidity Sensor
  • Adjustable Timer
    Adjustable Timer
  • 5 Year Warranty
    5 Year Warranty

Innovative Silence

The Silent Design 125 extractor fan is the result of a long and meticulous development process by the Research, Development & Innovation Department at EnviroVent, who have patented a new concept; bringing about a revolutionary change in extractor fan design to extract the maximum airflow with the minimum noise possible.

Multiple Applications

The Silent Design 125 extractor fan is available with a variety of functions including adjustable timers and adjustable humidity sensors.

Interchangeable Colour Bars

The Silent Design 125 comes with interchangeable colour bars let the fan blend in with every setting. 4 colours to match the decor of the room: blue, red, green and yellow.

Product Codes
Product Code
Product Name
Product Description
Silent Design 125
Silent Design 125
Adjustable Timer
Silent Design 125
Adjustable Timer, Adjustable Humidity Sensor
Product Specification

Performance Curve

Related Documents
Question & Answers

Should I remove the tape on the inside of the Silent HT fan?

No, this is Hydroscopic tape, it is to protect the sensor from moisture, but will allow vapour through. Removing this may damage the sensor and invalidate the warranty.

Why is my Silent extractor fan running continuously?

This may be due to incorrect wiring, please have a qualified electrician check this with the install guide and speak to the EnviroVent technical department if required. It may also be due to an incorrectly set humidity sensor (model dependant). If a humidity sensor version is fitted the sensitivity can be adjusted on the extractor fan. Adjusting clock wise will make the sensor less sensitive, anticlockwise will make the sensor more sensitive to humidity.

My Silent extractor fan will not run:

If an extractor fan will not operate, a qualified electrician will need to check the wiring, ensuring the fan is wired correctly and receiving power.

How do I get the front cover off my Silent extractor fan?

Always isolate power first. The cover can be removed by firstly pushing the small reseeded retaining point on one of the edges of the extractor fan, then slowly unclipping the rest of the cover with a small flat screw driver.

What wiring does the Silent T and HT require?

These extractor fans require a permanent live and neutral and a switch live (to trigger the fan).

Can I fit a 230V extractor fan in zones 1 or 2 of a bathroom?

Yes, as long as the circuit is protected by a 30mA RCD
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