Quro 100mm/4" SAP PCDB Listed Low Noise DMEV Fan with Timer and Humidistat Envirovent QRST-LC Best in class and SAP PCDB listed down to 0.08 W/l/s Auto intelligent humidity varies fan speed based on relative humidity Auto intelligent timer varying the over-run timer period Back pressure detection enables the fan to deal with back pressure without compromising airflow Side fitted digital display with Timer and Error code functions Constant volume with limiter to prevent nuisance running Low noise level below 9 dB(A) at 3m 3 Year Warranty The Envirovent QURO 100mm/4" represents the pinnacle of energy-efficient decentralised mechanical extract ventilation. Achieving SAP PCDB listing with an industry-leading Specific Fan Power of 0.08 W/l/s, this unit delivers exceptional performance whilst minimising operational costs. Intelligent humidity control automatically adjusts fan speed based on relative humidity levels, ensuring optimal moisture extraction without unnecessary energy consumption. The adaptive timer intelligently varies the over-run period to match actual ventilation demands, whilst advanced back pressure detection enables the fan to maintain consistent airflow even in challenging installation conditions. Operating at whisper-quiet levels below 9 dB(A) at 3 metres, the QURO provides discreet ventilation suitable for any environment. The constant volume limiter prevents nuisance operation, whilst the side-fitted digital display offers convenient access to timer settings and diagnostic error codes. With a maximum flow rate of 30 l/s and compact dimensions of 175 x 175 x 128.5mm, the QURO integrates seamlessly into residential and commercial applications. The IP45 rating ensures durability, and comprehensive testing with both rigid and semi-rigid ducting guarantees reliable performance across diverse installations. Backed by a robust 3-year warranty, the QURO is the specification choice for projects demanding superior efficiency, intelligent controls, and dependable operation. . Brand Envirovent Colour White Maximum Flow Rate 30 l/s Dimensions (H)175 mm x (W)175 mm x (D)128.5mm Specific Fan Power Down to 0.08 W/l/s Guarantee 3 Years Hole Size 99mm IP Rating IP45 Packaging Types Each
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