Filter systems, filters, and methods of managing filter systems are provided. The filter systems utilize large filters that are too large to be manually handled by service personnel. As such, the filter systems and methods utilize filter positioning units for handling the filters during maintenance intervals. Some systems include sensor for remotely monitoring the status of the filters and the information can be used to reverse pulse the filters as well as to indicate the end of the service life of the filters. The filters can be refurbished with new filter media.

Embodiments relate to systems and methods for forming an air filtration system. The system includes an air filter. The air filter includes a plurality of filtration surfaces, including a first outer filtration surface, a second outer filtration surface opposite to the first outer filtration surface, and one or more inner filtration surfaces provided between the first and second outer filtration surfaces. The plurality of filtration surfaces may be configured to trap one or more airborne particulates, including viruses and/or bacteria. The air filtration assembly further includes a disinfectant coating. The disinfectant coating is formed on at least a portion of the plurality of filtration surfaces. The disinfectant coating may be for use in disinfecting trapped airborne particulates. The disinfectant coating includes a performance layer. The performance layer includes metal ions. The disinfectant coating further includes an enhancement layer. The enhancement layer includes carbonates.

A system for providing a centralized aerosol source extraction and filtration system is disclosed. The system includes an aerosol capture component coupled to a set of aerosol capture ductwork being located at or near a patient's mouth while treatment is being provided and is coupled to a set of aerosol capture ductwork, a filter and fan component coupled to the set of aerosol capture ductwork for generating the necessary pressure differential to draw the air about the patient's mouth into the aerosol capture component along with any airborne particulates, contaminants, and pathogens, and a recycled clean air component for returning recycled clean air back to patient areas and workspaces through a set of recycled clean air ductwork arranged to create positive and directional airflow throughout the office space. The filter and fan component has one or more filter layer types to remove particulates, contaminants, and pathogens from an air flow received from the set of aerosol capture ductwork.

An incubator for cell and tissue culture under controlled atmospheric conditions has a primary air flow control device that forms a primary, preferably laminar flow, air veil across an opening that allows access to the cells or tissue cultures disposed within the incubator. Preferably, most if not all of the air in the primary (laminar flow) air veil is recirculated, and a secondary air flow control device is used that forms a secondary, preferably laminar flow, air veil between the primary (laminar flow) air veil and a user of the incubator.

The present invention is directed to an assembly and method of use thereof for reducing microbial load in an airway of a patient. The assembly includes a miniature vacuum unit. The miniature vacuum unit includes a housing, at least one air inlet configured in the housing for air intake; a vacuum motor for sucking the air through the at least one air inlet; vents configured in the housing for blowing the sucked air out of the housing, a filter media covering inner side of the vents, such as the sucked air passes through the filter media, the filter media configured to retain microbes suspended in the sucked air; and at least one suction tube. The suction tube is having a proximal end and a distal end, the proximal end of the at least one suction tube configured to sealably and releasably coupled to the at least one air inlet, a plurality of apertures configured in the wall of the suction tube near its distal end. The suction tube configured to be positioned within the mouth of the patient.

The present disclosure relates to an air-permeable light guide plate and an air purifying filter including the same, wherein the air-permeable light guide plate according to an embodiment of the present disclosure includes a light source located on at least one side surface, and a flat type plate through which light generated from the light source passes, wherein light is emitted in a direction perpendicular to a flat plate of the flat type plate, and the flat type plate has a plurality of openings.

The present disclosure relates to an air-permeable light guide plate and an air purifying filter including the same, wherein the air-permeable light guide plate according to an embodiment of the present disclosure includes a light source located on at least one side surface, and a flat type plate through which light generated from the light source passes, wherein light is emitted in a direction perpendicular to a flat plate of the flat type plate, and the flat type plate has a plurality of openings.

An air inhalation and exhalation filtering mask has a mask body, an inhalation device, an exhalation device, and first and second filtering structures, wherein, on the middle portion of the mask body, first and second openings are respectively configured at an upper and a lower position. The inhalation device is configured on the mask body and covers the first opening. Air flows from the front side of the mask body, passing through the inhalation device, and flows to the rear side. The exhalation device is configured on the mask body and covers the second opening. Air flows from the rear side of the mask body, passing through exhalation device and flows to the front side. The first filtering structure filters air flowing to the rear side of the mask body, while the second filtering structure filters air flowing to the front side of the mask body.

An air filter apparatus may comprise a frame and a hemp-based filter disposed within the frame. The hemp-based filter is configured to sequester carbon dioxide in response to air flowing through the hemp-based filter.

Filter media comprising adsorptive particles are generally described. In some embodiments, the adsorptive particles are present in a relatively large amount, in a layer discrete from one or more other layers and/or fiber webs also present in the filter media, and/or in a layer that comprises a relatively low amount of fibers. In some embodiments, the filter media further comprises a non-woven fiber web comprising fibers with relatively small diameters.