Net device for smoke exhauster

摘要

A smoke exhauster includes bottom opening for engaging with a fan device and includes a fastener secured beside the opening. A net device has a portion secured to the smoke exhauster opposite to the fastener and includes an ear having a notch for engaging with the fastener and for allowing the ear to be secured to the smoke exhauster without disengaging the fastener from the smoke exhauster. The ear includes an oblong hole communicating with the notch for allowing the fastener to be engaged into the oblong hole.