Blauberg Force 100mm (4") High Pressure Centrifugal Bathroom Extractor Fan with Humidity Sensor - FORCE100H

This model is part of the FORCE series from Blauberg and features a 100 mm (4″) duct connection designed for higher-static duct runs. The centrifugal impeller design helps maintain stronger airflow through longer or more restrictive ducts. According to the data sheet, the maximum airflow is about 98 m³/h, and it draws around 16 W of power.

What sets the “H” variant apart is the built-in humidity sensor (humidistat) which enables the fan to automatically activate when relative humidity rises above a preset threshold. The unit will then continue to run to clear the moisture once triggered. It’s rated at a sound pressure level of 36 dB(A) at 3 m in its specification.

In terms of installation and usability: The fan is suitable for wall or ceiling mounting, includes an anti-back-draft shutter to prevent unwanted airflow when off, and comes with a 5-year motor warranty (typical of the brand). It’s a solid choice for bathrooms or utility rooms where condensation control and automatic ventilation are required.