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 of the front body 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 configured to accommodate the air cleaning module. The air cleaning module includes: a fan module accommodated in 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 and a filter cover covering surrounding side and rear surfaces of the filter.

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 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. 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.

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.

The filtration enclosure for ventilation bags is a manually operated respirator. The filtration enclosure for ventilation bags is adapted for use with a patient. The filtration enclosure for ventilation bags is a breathing assistance device that maintains a positive pressure within the lungs of the patient. The filtration enclosure for ventilation bags incorporates a bag valve mask respirator and a containment structure. The containment structure forms a protection space that encloses the bag valve mask respirator such that the bag valve mask respirator can operate while within the containment space. The containment structure is formed as a gas permeable structure. The containment structure forms a filter that filters microorganisms from the gas that flows through the boundary surface formed by the containment structure.

The filtration enclosure for ventilation bags is a manually operated respirator. The filtration enclosure for ventilation bags is adapted for use with a patient. The filtration enclosure for ventilation bags is a breathing assistance device that maintains a positive pressure within the lungs of the patient. The filtration enclosure for ventilation bags incorporates a bag valve mask respirator and a containment structure. The containment structure forms a protection space that encloses the bag valve mask respirator such that the bag valve mask respirator can operate while within the containment space. The containment structure is formed as a gas permeable structure. The containment structure forms a filter that filters microorganisms from the gas that flows through the boundary surface formed by the containment structure.