Ducted Ventilation System, Particle Collection Unit and Method

A ducted ventilation system comprising a duct provided with a particle collection unit comprising an ionisation section and a particle collection section located downstream the ionisation section, wherein the particle collection section is configured for removing particles from air flowing through the duct,

• the ionisation section comprises one or more ionisation members and the particle collection section comprises corresponding one or more particle collection members, wherein each ionisation member is attached to a corresponding particle collection member to form a slat element that is rotatable about a rotational axis between a first position wherein air flowing through the duct mainly flows through the one or more ionisation members and one or more particle collection members and a second position wherein the air mainly flows along the one or more ionisation members and particle collection members.