The PK100 EC-Blue uses Electronically Commutated technology, which marries the efficiency of a DC motor to electronic control. It delivers up to 580m3 per hour through a 100mm flange and draws between 0 and 115 watts, so it only uses power for the airflow you ask of it.
An RJ45 port accepts the ECTC-1 digital controller, letting you hold a target temperature and set minimum and maximum speeds. The EBM Papst motor runs quietly and infinitely variable, not in fixed steps. Mounting bracket and cable are included. The fan carries a one-year warranty. Pair it with a carbon filter for clean, quiet extraction.