Innovative exhaust fan with an elegant design for new levels of comfort. It is intended for use in sanitary facilities, as well as in various residential and construction containers and non-residential spaces (e.g. pantries, basements, garages).

• intelligent control functions allow multiple microclimate operation settings
• offers 3 speed levels
• extremely economical, power consumption 3.8W
• vertical or horizontal mounting
• Specially profiled rotor ensures almost silent operation (17 dBa)
• Due to the interchangeable attachments, the fan is suitable for installation with air ducts of 100 or 125 mm.
• low maintenance
• control/calibration via remote control
• built-in overheating protection
• built-in non-return valve
• built-in humidity sensor
• including adapter for 100/125 mm hose

Steering

Manual control:

• Via the light switch in the room. Switch not included.
• Via the IR remote control that is included.

Automatic control:

• Via a timer linked to the switching on of the lights in the room. The fan can be delayed from 0-5min. After the external switch is turned off, the fan can operate with a delay of off (from 5-30min).
• Via a timer linked to the humidity sensor in the room. When the humidity exceeds the set value, the fan switches to a higher speed to remove excess moisture. When the humidity level is balanced, the timer is activated and the fan operates for the set period of time to allow complete removal of excess moisture and then returns to the previous operating mode.
• Via timer. The fan operates according to the set timer for delaying switching on (0-5min) and switching off (5-30min).
• Automatic ventilation mode - in this mode, the fan operates with the lowest air flow until the humidity sensor or external switch is activated.

Mode of operation	24 hours/ quiet/ maximum
Voltage / Frequency	100 - 240V / 50 - 60HZ
Power consumption	3.8W
Current consumption	0.03A
Fan capacity DM 100 mm	33 / 72 / 106 m³/hour
Fan capacity DM 125 mm	40 / 83 / 133 m³/hour
Number of turns	2200 rpm
Sound pressure at 3 m	26 dBA
Weight	0.35 kg
Protection class	IP44

	Dimensions in mm
D	99 / 123.5
B	152
H	206
L	57
L1	29

Same summary

The SIKU i-Fan built-in fan with a small diameter of up to 20 cm is best suited for smaller rooms where constant or localized air exchange is required. Given that it only has one operating speed, it is not suitable for users who want precise adjustment of the air flow or a higher level of quiet operation, which is important in a bedroom or while studying. Since it is a prefabricated solution, it is recommended mainly where portability or mobile use is not required. The ratio between size, functionality and type of use is balanced mainly for constant ventilation of smaller toilets, pantries, bathrooms or utility rooms.

Recommendation source: Enaa guides and team experiences.

User view

This built-in fan is usually used by those who want a simple but reliable solution for air exchange in smaller spaces, such as bathrooms or storage rooms. In practice, it is suitable for users who do not care about frequent speed adjustment, but always look for ventilation without additional settings.

Users also appreciate the stable quality of Siku brand products, as they enable long-term use and easy integration into existing home ventilation systems.

Why buy at Enaa

When you purchase this fan on Enaa, you have access to a diverse range of purpose-selected fans, making it easy to compare different solutions for your home. On our site, you can quickly check the suitability of the item based on the type of space and method of use, and additional expert advice is often available for choosing the right variant.

Answers to frequently asked questions

Where does it make the most sense to install the SIKU i-Fan built-in fan?

It is most often used in smaller indoor spaces, such as bathrooms, toilets or pantries, where you want to ensure air circulation and prevent moisture buildup.

Can I connect the SIKU i-Fan to a light switch?

Yes, the built-in fan can be connected so that it turns on at the same time as the room lighting, depending on the wiring and connection method in your home.

Is the operating volume suitable for use in a bedroom?

The single-speed model is not specifically designed for quiet nighttime use, so for sensitive environments such as bedrooms, we recommend additional checking of the operating volume or choosing a model with a lower sound output.

What is the maintenance and cleaning of a built-in fan?

Regular cleaning of the fan grille and housing ensures optimal performance and extends the life of the device; access to the filters is usually easy on this model.

Is it suitable for continuous ventilation of larger rooms?

Due to its smaller size and single speed, the SIKU i-Fan is more suitable for smaller rooms where basic air exchange is sufficient, while for large rooms we recommend a more powerful or larger model.

Description updated: April 2026