Ekuẹ (bellows) are used to blow air into the fire or furnace, increasing the temperature for brass casters in the Igun-Eronmwon and blacksmiths in the Igun-Ematon. Ekuẹ would be pumped by hand using two attached poles. Hand-pumped bellows were used by the brass casters until 1998, and now battery-operated furnaces are used (Nevadomsky, 2005, p.75[92]; Kalilu & Emeriewen, 2015, p.72[221]).