CPC Subgroup
F24F 7/10 with air supply, or exhaust, through perforated wall, floor or ceiling (outlet members for directing or distributing air F24F13/06)
Full Title
Ventilation > with ducting systems > with forced air circulation, e.g. by fan > with air supply, or exhaust, through perforated wall, floor or ceiling (outlet members for directing or distributing air F24F13/06)