ECMF-250-S

TerraBloom’s ECMF-250-S is a 10-inch (250 mm) silenced EC inline duct fan built for high airflow with reduced noise. Inside a coated steel housing, a 2-inch acoustic foam layer and four internal suspension springs attenuate sound while the EC motor and dual-jet blades deliver up to 946 CFM using 126 W. The unit supports 0–100% speed control with the included variable controller and an 8‑speed digital controller; PWM and 0–10 V control are also supported. Rated noise is 30–52 dBA (ducted, measured 6 ft from inlet). Additional specs include 410 Pa maximum static pressure and IP64 ingress protection. The fan ships ETL and HVI listed and meets ENERGY STAR Most Efficient 2021 criteria. Duct diameter is 10 inches; maximum free-air flow equals about 1,607 m³/h.