Details
Airflow m³/h
86m³/h
Applicable Area
Bathroom, Toilet
Bathroom Zones
1
Collection Name
Silent
Duct Diameter
100mm
Extraction Rate
21L/s
Extractor Fan Type
Axial
Fan Diameter
4 Inch
Finish/Colour
White
GTIN (Barcode)
5015135790844
Humidistat
Yes
IP Rating
IPX5
MPN
477436
Mounting Options
Ceiling, Panel, Wall, Window
Max Noise Level
12dB
Number of Speeds
2
Power Consumption
4.8W
Quiet Mark Approved
Yes
Timer
No
Voltage
240V
Dimensions
Depth
425mm
Height
160mm
Weight
0.3kg
Width
160mm
Downloads
vent-axia-catalogue-page
Vent-Axia Silent VASF100HT 100mm (4") Axial Extractor Fan with Humidistat - 477436
SKU: 477436
You save: £51.53
Details
Airflow m³/h
86m³/h
Applicable Area
Bathroom, Toilet
Bathroom Zones
1
Collection Name
Silent
Duct Diameter
100mm
Extraction Rate
21L/s
Extractor Fan Type
Axial
Fan Diameter
4 Inch
Finish/Colour
White
GTIN (Barcode)
5015135790844
Humidistat
Yes
IP Rating
IPX5
MPN
477436
Mounting Options
Ceiling, Panel, Wall, Window
Max Noise Level
12dB
Number of Speeds
2
Power Consumption
4.8W
Quiet Mark Approved
Yes
Timer
No
Voltage
240V
Dimensions
Depth
425mm
Height
160mm
Weight
0.3kg
Width
160mm
Downloads
vent-axia-catalogue-page
Product Information
This fan offers excellent performance in a compact and smart design. It is a 100 mm (4″) axial extractor fan from the trusted brand Vent‑Axia, designed specifically for bathrooms or toilets. The fan body is rated at IP X5, making it suitable for installation in zone 1 (above baths/showers) where steam and moisture are common. It features a high-efficiency motor, and two selectable speeds at installation to suit varying room sizes and duct run lengths.
A major highlight is how quietly it operates — on its lower setting it can run from as low as 12 dB(A), making it whisper-quiet. The higher setting still maintains good performance: for example 76 m³/h (which is about 21 L/s) on high speed. On top of this, the “HT” in the model stands for Humidistat plus Timer. The humidistat detects elevated humidity levels and switches the fan on automatically; the built-in timer then allows the fan to continue running for a set period (about 15 minutes) after humidity drops or the trigger ends.
From an installation and specification standpoint: the unit measures approx. 160 mm × 160 mm in its front face, with an overall depth around 117 mm (varies slightly by source) and uses a standard 100 mm duct connection. It comes with back-draught shutters included, which help prevent cold air entering when the fan is off. Overall it’s a premium choice for those wanting a quiet, automatic, moisture-responsive extractor fan in a bathroom or en-suite.
Delivery Information
Free Delivery on All Orders Over £50.
This Excludes Delivery to the Scottish Highlands, Offshore Islands and Northern Ireland.
For more information, please see our Delivery details.
Vent-Axia Silent VASF100HT 100mm (4") Axial Extractor Fan with Humidistat - 477436 (477436)
Shop the range
Consumption Timer Extraction
Rate Ltr/Sec Airflow Number Of Speeds
4.8 W
No
21 L/s
86 m3/h
2
7.5 W
Yes
24 L/s
86 m3/h
2
7.5 W
No
24 L/s
86 m3/h
2
7.5 W
Yes
24 L/s
86 m3/h
2
7.5 W
Yes
24 L/s
86 m3/h
2
7.5 W
Yes
24 L/s
86 m3/h
2