1. US20230020450 - MASK APPARATUS

A mask apparatus includes: a mask body including a rear body and a front body coupled to a front surface of the rear body and providing an inlet and an outlet, a face guard coupled to the rear body, accommodating a portion of user's face, and defining a respiration space, and an air cleaning module purifying air introduced into the inlet and supplying the purified air to the respiration space. The rear body includes: a face cover portion configured to cover the portion of user's face and a fused portion extending forward from an edge of the face cover portion. The fused portion includes: a seating portion accommodating an edge of a rear surface of the front body, a support portion supporting an edge of a side surface of the front body, and a moat portion recessed at a position at which the seating portion and the support portion meet.