RANGE HOOD FAN HAVING FILTER

摘要

A range hood fan (100) is constituted of a case main body (10) connected partly to an exhaust gas duct (220) and forming an exhaust gas passage (14) inside the case main body, a fan motor (30) supported by a partition wall (12) in the case main body (10) and having a fan (32) on a rotation shaft (31), and an exhaust gas suction opening (15) formed in a portion open in a hood main body (210) of the case main body (10). A first filter (40) is provided at the lower part of the case main body (10). The first filter (40) is formed by a net body through which gas containing oily smoke can be passed and has first grooves (41) which are extended in a rotation direction of the fan (32) and end portions of which are open in the exhaust gas passage (14). A second filter (50) is provided inside the first filter (40). The second filter (50) is formed by a net body through which gas containing oily smoke can be passed and has second grooves (51) that are larger than the first grooves (41) and are open in the exhaust gas passage (14). The gas sucked by the fan (32) through the exhaust gas suction opening (15) is caused to flow along each of the second grooves (51) and of the first grooves (41), so that oily smoke is liquefied and collected.