How to balance efficiency with perfect quietness? Longwell Duct Fan Solutions： ▷ EC Motor – Saves 40% Energy ▷ Ultra-Quiet – As low as 25dB ▷ Smart Control – PWM/0-10V BMS Integration ▷ Compact – Fits Concealed Spaces Fans are tested to AMCA 210/211 methods (third-party reports on request); CE (LVD/EMC), RoHS, REACH and ErP compliance; ETL/UL on selected models; ISO 9001/14001/45001 certified factory.
Ideal for: Hospitals/Data Centers/Premium Spaces