Deta 4 inch extractor fan with Timer and Humidistat 4603
 
The Deta 4 inch extractor fan with timer and humidistat 4603 features a sleek, slim profile design that delivers quiet and efficient ventilation for domestic environments. With a low noise level of just 29dB at 3 metres, it provides effective extraction while maintaining minimal disruption, making it ideal for bathrooms, shower rooms, and utility areas.
 
The fan offers an extraction rate of 25 litres per second or 90 cubic meters per hour, combined with a low specific fan power of 0.32 W/l/s for energy-efficient operation. It includes both an adjustable overrun time delay and a built-in humidistat, with user settings ranging from 2 to 30 minutes and 60–90% relative humidity. This allows the fan to respond automatically to moisture levels for improved air quality control.
 
Designed for through-wall installations or ducting runs under 2 metres, the fan is supplied with a one-shot thermal fuse for added safety. It carries an IP44 rating for use in moisture-prone environments and complies with BS EN 60335-2-80, as well as Part F and L1 Building Regulations Approved Document requirements. The unit is backed by a 3 year manufacturer guarantee for reliable long-term performance.
 
PRODUCT FEATURES:
Deta 4 inch extractor fan with Timer and Humidistat 4603
Sleek, slim profile design offering a quiet and efficient performance
Extraction rate 25 litres/second or 90m3/hour
Noise level of 29dB @3m
Specific fan power of 0.32 W/l/s
Overrun time delay and humidistat user settable between 2 and 30 mins and 60–90% RH respectively
Ideal for through wall applications or with ducting lengths under 2m
Supplied with a one shot thermal fuse
IP44 Rating
Compliance: BS EN 60335-2-80, Part F & L1 Building Regulations Approved Document
3 year manufacturer guarantee

PRODUCT CODE: 4603