ROTARY AIR CURTAIN GENERATING DEVICE USED IN A FUME PURIFICATION DEVICE, AND RANGE HOOD COMPRISING SUCH DEVICE

摘要

The present invention provides a rotary air curtain generating device (1) used in a fume purification device, where the rotary air curtain generating device (1) is used to generate a rotary air curtain surrounding a fume path and/or a fume source. In this way, in one aspect, fume dissipation can be remarkably reduced due to existence of the air curtain; and in another aspect, as the air curtain is rotary, fume suction of the fume purification device can be further enhanced.