PIR Extractor Fans
PIR Extractor Fans combine effective ventilation with built-in passive infrared (PIR) sensors for automatic operation.
Activated by motion, these fans provide hands-free convenience and energy efficiency, switching on when someone enters a room and turning off after a timed delay.
Typical use cases include bathrooms, toilets, utility rooms, and en-suites where moisture and odours need to be removed efficiently without manual switching.
The benefits include improved hygiene, reduced energy waste, and compliance with Building Regulations for ventilation.
YESSS Electrical stocks trusted brands such as Airflow, and Envirovent, as well as our exclusive brand Osily known for durable, reliable extractor solutions.
Popular technical specifications include fan diameters of 100mm, 120mm, and 150mm, extraction rates from 85m³/h to 230m³/h, low-noise operation from 25dB(A), and overrun timers adjustable from 2 to 20 minutes.
For effortless, energy-saving ventilation, choose PIR extractor fans for modern domestic and commercial spaces.
Zone 1 Extractor Fan with PIR Sensor, 100mm, 97m³/h, 25dB, Chrome
100mm Silent 100 Extractor Fan with Timer & PIR - White
What is a PIR extractor fan?
A PIR extractor fan is a type of domestic extractor fan with a built-in Passive Infrared Sensor (PIR) that detects movement. When someone enters the room, the fan switches on automatically and runs for a peroid of time before turning off. This allows for automatic ventilaion without the need for manual switches.
How does a PIR extractor fan work?
PIR extractor fans use motion detection rather than manal control. When the sensor detects occupancy, the fan activates and begins extracting air. Most models include an adjustable run-on-timer, allowing the fan to contiue running after movement is no longer detected, helping to remove lingering moisture and odours before switching off.
Where are PIR extractor fans commonly used?
PIR extractor fans are typically installed in areas where hands-free operation is useful. Common applications include bathrooms, en-suites, WCs, and utility rooms. They are especially practical in spaces where users may forger to switch on a fan or where light-activated fans are not always suitable.
What is the difference between a PIR extractor fan and a timer fan?
A timer extractor fan is usually activated by a light switch and continues running for a set time after the light is turned off. A PIR extractor fan activated based on movement instead, meaning it does not rely on lighting circuits. This makes PIR fans useful in daylight bathrooms or rooms where lighting and ventilation are operated independently.
Do PIR extractor fans help reduce condensations and odours?
Yes. By switching on automatically when a room is in use, PIR extractor fans help remove moist air and odours at the point they are produced. This helps reduce condensation build-up on walls and ceilings and supports better air quality, particularly in bathrooms and WCs.
Are PIR extractor fans suitable for bathrooms?
Many PIR extractor fans are designed for bathroom use and are available with appropriate IP ratings for installation in defined bathroom zones. When correctly specified and installed, they provide automatic ventilation while supporting compliance with Building Regulations Part F.
Are PIR extractor fans energy effecient?
PIR extractor fans are designed to operate only when required, which can help reduce unnecessary run time. By activating through motion detection and using adjustable overrun timers, they provide effective ventilation while helping to limit energy use compared with fans that may be left running unintentionally.