Abstract: A mask apparatus including a mask body that defines a communication hole, a sensor mounting portion that extends from a front surface of the mask body, that surrounds the communication hole, and that defines an installation space therein, a seal coupled to a rear surface of the mask body and configured to define a breathing space between the mask body and a user, a pressure sensor accommodated in the installation space and configured to sense air pressure inside the breathing space that is in communication with the communication hole, and a film disposed in the installation space and configured to restrict permeation of moisture from the breathing space into the installation space through the communication hole.

Abstract: An air cleaner is provided that may include a case including a first suction inlet, the case having a cylindrical or cone shape; a fan housing provided inside of the case, the fan housing accommodating a fan therein; a filter provided at a suction side of the fan, the filter filtering foreign materials in air which is suctioned through the first suction inlet; and a housing suction flow path formed between an outer surface of the fan housing and an inner surface of the case, the housing suction flow path allowing air which is suctioned through the first suction inlet to flow toward and through the filter. The housing suction flow path may include a first flow path inlet having a predetermined first width, and a second flow path inlet through which air having passed through the first flow path inlet flows, the second flow path inlet having a second width greater than the first width.

Abstract: A mask apparatus includes a mask body and a mask body cover coupled to the mask body. The mask body includes a front surface, a rear surface, and a pair of air ducts disposed at left and right sides of the front surface. The mask body is configured to mount a pair of fan modules at suction sides of the pair of air ducts. The mask body cover covers the pair of air ducts and the pair of fan modules. The mask body defines a cover coupling groove along an edge of the mask body, and the cover coupling groove is coupled to an edge of the mask body cover.

Abstract: An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

Abstract: A mask apparatus according to an implementation of the present disclosure includes a front body; a rear body which is configured to be coupled to the rear surface of the front body and includes: a pair of accommodation portions protruding from a front surface thereof toward the front body; an exhaust port formed under the pair of accommodation portions; and an exhaust flow path guide protruding forward along an edge of the exhaust port; a face guard configured to be coupled to the rear surface of the rear body to be in close contact with the user's face and having a breathing space formed therein; an air cleaning module configured to be placed in the accommodation portion to purify and supply external air and supply the air to the breathing space; and a sealing cover configured to be fitted to an end portion of the exhaust flow path guide.

Abstract: A mask apparatus that includes a mask body including: a front body; and a rear body coupled to a rear surface of the front body and from which a pair of accommodation portions protrudes forward; a face guard coupled to a rear surface of the rear body configured to contact a user's face and define a breathing space formed therein; a fan module seated in the accommodation portion; a flow guide placed on a rear surface of the fan module and defining a portion of a discharge port communicating with the breathing space; a filter seated on the flow guide; and a filter housing rotatably connected to the rear body to cover the filter, in which the filter housing includes: a plurality of filter frames; a filter cover; a hinge; and a fastening hook.

Abstract: A mask apparatus that includes a mask body including a front body; and a rear body coupled to a rear surface of the front body and from which a pair of accommodation portions protrudes forward; a face guard coupled to a rear surface of the rear body to contact a user's face and define a breathing space therein; a fan module seated in the accommodation portion; a flow guide provided at a rear surface of the fan module and defining a portion of a discharge port communicating with the breathing space; a filter seated on the flow guide; and a filter housing rotatably coupled to the rear body to cover the filter, in which a guide shoulder is rounded and protrudes from the side of the flow guide, and in which guide grooves are defined on the side of the filter housing.

Abstract: An air cleaner is provided that may include a main body having at least one cylindrical filter and at least one filter frame that forms a mounting space for the at least one filter; and a cylindrical case coupled to an outside of the main body, the cylindrical case having at least one suction inlet through which air is suctioned toward the at least one filter, so that air may be suctioned in 360-degree directions. If the cylindrical case is opened, the at least one filter may be extracted to the outside in a radial direction from the mounting space, thereby facilitating attachment/detachment of the at least one filter.

Abstract: According to an embodiment of the present disclosure, a ceiling fan includes a shaft coupled to a ceiling or a wall surface, a housing cover provided at a central axis thereof with a shaft and receiving a motor assembly and an electronic unit, and a blade coupled to the housing cover. The electronic unit is provided in a multi-stage.

Abstract: An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

Abstract: A mask apparatus includes a mask body, a pair of hook mounting portions at side ends of the mask body, a seal coupled to a rear surface of the mask body, and a pair of ear hook portions connected to the hook mounting portions. Each hook mounting portion includes an upper hook mounting portion, a lower hook mounting portion below the upper hook mounting portion, a hook pin at each of the upper hook mounting portion and the lower hook mounting portion, and a through-hole defined in each of the upper hook mounting portion and the lower hook mounting portion. Each ear hook portion includes a strap portion, a first hook portion connecting the strap portion to one of the upper and lower hook mounting portions, and a second hook portion connecting the strap portion to the other of the upper and lower hook mounting portions.

Abstract: An air cleaner is provided that may include a first air cleaning module having a first fan that generates air flow from a first suction inlet toward a first discharge outlet; a second air cleaning module having a second fan that generates air flow from a second suction inlet toward a second discharge outlet; a dividing plate provided between the first air cleaning module and the second air cleaning module; and a display provided at inside of the dividing plate and in which a light source is provided.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.