Modern design has reached the extractor fan with Knightsbridge’s latest range of four LED backlit models, which diffuse a soft blue light when operated.

Developed for the upmarket bathroom, the company says these fans are quiet and refined – just 35dB at 3m – and need no earth because they are double-insulated.

Suitable for either walls or ceilings, the four models – EX003T, EX004T, EX005T, and EX006T – suit any décor as they come in white, black and stainless steel, and black and grey respectively. They are also efficient, Knightsbridge says, extracting 90 m3/hour for between two to 30 minutes, according to the setting of the adjustable built-in over-run timer.

The fans are constructed from durable polycarbonate, rated at IPX4, and guaranteed for three years.