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 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. Each of left and right edges of the rear body provides a strap connection portion into which a strap is coupled. The strap connection portion includes: a strap recess provided at a rear surface of the rear body, a strap hole defined in the strap recess, a strap bar connecting upper and lower surfaces of the strap recess and spaced apart from the strap hole, and a waterproof sleeve extending from the front surface of the rear body along an edge of the strap hole.

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 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. A portion of the rear body defines an accommodation portion accommodating the air cleaning module. The air cleaning module includes a fan module disposed at a seating portion of the accommodation portion, a filter disposed at a rear side of the fan module and purifying air flowing into the fan module, and a filter housing including a filter frame surrounding a side surface of the filter and a filter cover covering a rear surface of the filter. The inlet is provided at the filter cover.

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 for user's face, and defining a respiration space, an air cleaning module mounted on the rear body, purifying air introduced into the inlet, and supplying the purified air to the respiration space, a main control module mounted on the front surface of the rear body, and a battery mounted on the front surface of the rear body corresponding to a lower side of the main control module. The main control module includes: a main control substrate, a first electric part component mounted on a front surface of the main control substrate, and a second electric part component mounted on a rear surface of the main control substrate.

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. A portion of the rear body protrudes toward the front body and defines an accommodation portion accommodating the air cleaning module, the inlet and the outlet are provided in the rear surface of the mask body to thereby introducing air into the mask body through the rear surface of the mask body and supplying the introduced air to the respiration space through the rear surface of the mask body, and the outlet is spaced apart from the inlet.

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.

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 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. A portion of the rear body protrudes toward the front body and defines an accommodate portion. The air cleaning module includes: a fan module disposed at the accommodation portion and defining an opening, a flow guide covering the opening, a filter disposed at a rear surface of the flow guide, and a filter housing covering a rear surface of the filter. The flow guide defines a communication hole guiding air passing through the filter to an inside of the fan module.

A mask apparatus includes a mask body that defines a suction hole and a discharge hole, a face guard detachably coupled to the mask body by magnetic force and configured to contact a face of a user, and an air cleaning module configured to filter external air and to supply the filtered air to a breathing space. The face guard includes a coupling portion facing a rear surface of the mask body. The coupling portion includes a magnetic body and a magnetic body mounting portion that receives the magnetic body. The magnetic body mounting portion includes a mounting portion body that protrudes forward from an outer surface of the coupling portion and an insertion guide rib disposed inside the mounting portion body, where the mounting portion body and the insertion guide rib are spaced apart from each other to thereby define an insertion hole that receives the magnetic body.

Provided is a method for controlling a mask apparatus. The method for controlling the mask apparatus includes measuring a current pressure value with respect to a mask by using a pressure sensor, comparing each of a preset atmospheric pressure maximum estimation and a preset and a preset atmospheric pressure minimum estimation to the current pressure value; updating the atmospheric pressure maximum estimation and the atmospheric pressure minimum estimation according to the comparison result, and controlling a voice output of a speaker based on a difference between the updated atmospheric pressure maximum estimation and the updated atmospheric pressure minimum estimation.

A mask apparatus includes a mask body that defines a suction hole and a discharge hole, a face guard detachably coupled to a rear surface of the mask body by magnetic force, and an air cleaning module configured to filter external air and supply the filtered air to a breathing space. The face guard includes magnetic bodies disposed at a front surface of the face guard. The magnetic bodies include a first magnetic body disposed at a center of an upper portion of the front surface of the face guard, and a second magnetic body and a third magnetic body that are disposed at a lower portion of the front surface. The second and third magnetic bodies are spaced apart from each other and disposed at sides of a center of the lower portion of the front surface of the face guard, respectively.

A mask apparatus includes a mask body that defines a suction hole and a discharge hole, a face guard coupled to a rear surface of the mask body and configured to contact a face of a user, and an air cleaning module filter external air and to supply the filtered air into a breathing space in the face guard. The face guard includes a coupling portion that faces the rear surface of the rear body, a close contact portion configured to be in contact with the face of the user, a connection portion that connects the coupling portion to the close contact portion and defines one or more widths of the face guard in a front-rear direction, and a spacing protrusion that protrudes from an outer surface of the connection portion to thereby separate at least a portion of the connection portion from the suction hole.