The present disclosure relates generally to air filtration devices. More specifically, but not exclusively, the present disclosure relates to an air filtration device comprised of a copper (or copper alloy) medium to inactivate airborne pathogens (e.g., viruses, bacteria, coronaviruses, COVID-19, etc.) and mitigate harmful exposure to said pathogens. The copper medium is a porous mesh (i.e., copper wool) that is positioned within or on a structure to provide support. The air filtration device may be positioned in an HVAC system such that an air stream flows through the copper medium to inactivate airborne pathogens, such as viruses, in the air stream. The air filtration device may be used in combination with, or in addition to, existing HVAC system conventional air filters (e.g., HEPA filters). The air filtration device includes a copper medium positioned on a face mask to inactivate airborne pathogens during respiratory processes.

The present disclosure relates generally to air filtration devices. More specifically, but not exclusively, the present disclosure relates to an air filtration device comprised of a copper (or copper alloy) medium to inactivate airborne pathogens (e.g., viruses, bacteria, coronaviruses, COVID-19, etc.) and mitigate harmful exposure to said pathogens. The copper medium is a porous mesh (i.e., copper wool) that is positioned within or on a structure to provide support. The air filtration device may be positioned in an HVAC system such that an air stream flows through the copper medium to inactivate airborne pathogens, such as viruses, in the air stream. The air filtration device may be used in combination with, or in addition to, existing HVAC system conventional air filters (e.g., HEPA filters). The air filtration device includes a copper medium positioned on a face mask to inactivate airborne pathogens during respiratory processes.

An air cleaner includes: a housing including an inlet and an outlet for air; an air blower configured to blow air introduced through the inlet to the outlet; a panel configured to face the outlet and including holes; a driver configured to move the panel with respect to the housing; and a controller configured to control the driver to move the panel to open or close a channel between the outlet and the panel and adjust an air volume discharged through the holes of the panel. Thus, the air cleaner prevents a cold draft phenomenon.

An air cleaner includes: a housing including an inlet and an outlet for air; an air blower configured to blow air introduced through the inlet to the outlet; a panel configured to face the outlet and including holes; a driver configured to move the panel with respect to the housing; and a controller configured to control the driver to move the panel to open or close a channel between the outlet and the panel and adjust an air volume discharged through the holes of the panel. Thus, the air cleaner prevents a cold draft phenomenon.

An air cleaning module includes a filter, a fan, a light source unit, a housing and a guide structure. The fan is configured to provide a suction direction and a blowing direction of a fluid which are substantially aligned. The light source unit is arranged to be adjacent to the filter to emit a light toward the filter. The light having a property that sterilizes a contaminant source in a fluid. The housing includes a fluid passage space. The guide structure is arranged between the fan and the filter and configured to guide a fluid to move along a fluid passage path set by the guide structure. The filter and the light source unit are arranged in the fluid passage space such that the light source unit sterilizes a fluid as a fluid flows toward the light source unit.

An air cleaning module includes a filter, a fan, a light source unit, a housing and a guide structure. The fan is configured to provide a suction direction and a blowing direction of a fluid which are substantially aligned. The light source unit is arranged to be adjacent to the filter to emit a light toward the filter. The light having a property that sterilizes a contaminant source in a fluid. The housing includes a fluid passage space. The guide structure is arranged between the fan and the filter and configured to guide a fluid to move along a fluid passage path set by the guide structure. The filter and the light source unit are arranged in the fluid passage space such that the light source unit sterilizes a fluid as a fluid flows toward the light source unit.

A ceiling type air cleaner comprises a housing comprising an opening arranged on a lower side of the housing; a filter arranged on a side of the opening; and an edge plate arranged on the lower side of the housing to support the filter and comprising a locking portion configured to lock the filter to the housing and unlock the filter from the housing. The locking portion comprises a space portion forming a space inside the edge plate; a sliding member configured to slide along the space portion; a fitting member configured to allow the sliding member to be fixed to or released from the space portion so as to allow the sliding member to slide; and a link configured to rotate according to the sliding of the sliding member so as to lock the filter to the housing or unlock the filter from the housing.

A handheld air purifier may include a suction body provided with a suction surface having a first and second frame, a fan to suction air, and a filter to filter suctioned air, a bending portion extending rearward from the suction body to bend upward, and a handle extending further from the bending portion and held by the user. The second frame may be provided behind the first frame and may include a protrusion that penetrates through the first frame to create a gap between the suction surface and a garment being treated to promote a free airflow through the handheld air purifier.

An air conditioning system includes an air handler, an evaporator coil, a blower and a heater all within the air handler. The system further includes an air filter and a transition between the air handler and the air filter. The transition includes at least four panels that together define a perimeter and an interior of the transition. A first end of the transition is configured to be attached to the air handler. A second end of the transition is opposite the first end, and an air filter is disposed at the second end. At least one of the at least four panels includes an access door that opens to allow access into the interior of the transition. A method includes positioning the first end of the transition at a first end of the air handler, and positioning the air filter at the second end of the transition.

An air conditioning system includes an air handler, an evaporator coil, a blower and a heater all within the air handler. The system further includes an air filter and a transition between the air handler and the air filter. The transition includes at least four panels that together define a perimeter and an interior of the transition. A first end of the transition is configured to be attached to the air handler. A second end of the transition is opposite the first end, and an air filter is disposed at the second end. At least one of the at least four panels includes an access door that opens to allow access into the interior of the transition. A method includes positioning the first end of the transition at a first end of the air handler, and positioning the air filter at the second end of the transition.