The present invention relates to open-celled phenolic foam filters. In particular, the present invention relates to open-celled phenolic foam air filters for killing microbes present in air, and the use of said filters in antimicrobial air sanitation systems.

A bedside airborne pathogen control apparatus and system. A bedside airborne pathogen control apparatus and system may include an air treatment unit configured to be selectively coupled to a first surface of a hospital bed (e.g., a headboard, a footboard, or a side rail), an air terminal configured to be selectively coupled to a second surface of the hospital bed (e.g., the headboard, the footboard, or the side rail), and a flexible duct extending between the air treatment unit and the air terminal, wherein the flexible duct is configured to deliver a supply of air from an air outlet of the air treatment unit to the air terminal. The air treatment unit and the air terminal may be configured to establish a flow of air around the hospital bed to reduce the dissemination of airborne pathogens from an occupant of the hospital bed.

A system (10) for removing airborne pathogens can include a housing (1, 4, and 6) having at least one or more chambers, a bipolar ionizer (9A), at least one particle filter (8), and an ultra violet light radiation source (5A) residing in at least one or more chambers. Furthermore, the embodiments can include the use of a ventilation system which can include a fan (3) that draws in surrounding air at an intake (7A) and directs the surrounding air towards the at least one particle filter, the bipolar ionizer, and the ultra violet light radiation source before the ventilation system expels the surrounding air drawn through the intake through an exhaust vent (7B).

A fluid filtration system that includes one or more layers, including a trapping layer and a reactive layer, connected to a frame. A method for fluid filtration that includes sorbing contaminants, trapping contaminants, and degrading contaminants.

An air purification and disinfection system includes an apparatus having a housing, an ultraviolet disinfection chamber, an air mover, and an air distribution unit in communication with the disinfection chamber. Air is passed through the disinfection chamber where it is purified and disinfected before it is delivered to the user of the apparatus through the air distribution unit. The apparatus can be configured as an open or a closed circuit system. The system may be configured to purify air in an airplane, a conference room, a classroom, or as a portable unit for an individual user. As a portable unit the disinfection chamber can be incorporated into a back pack, a vest, a purse, a briefcase, a shoulder bag, a cervical collar, or any other format for being carried by the user.

An improved technology for inactivation of viruses, for example the SARS-CoV-2 virus that is causing the Covid-19 pandemic, is described. The technology can include a device that includes a substrate coated in a polymer that is infused with a pathogen inactivating material. In various embodiments, at a given time, a portion of the pathogen inactivating material is exposed to the environment, and the device is configured to periodically or intermittently expose additional pathogen inactivating material to the environment. For example, the polymer can be ablative or sacrificial.

The present invention discloses a purifier, including a purifier body and a filter unit arranged in a purification chamber of the purifier body. A side wall of the purification chamber has an opening to which a cover is mounted. The filter unit is an integrated filter and disinfection body, which includes a filter body and a disinfection body which are detachable from each other. The filter unit is mounted inside the purification chamber and electrically connected to the purifier body to supply power to the disinfection body. According to the arrangement of the filter and disinfection body in the present invention, the disinfection body and the filter body are collectively designed into one integrated structure, so that the disinfection body and the filter body can be mounted inside or removed from the purifier body as a whole, which is convenient and fast. In addition, the disinfection body and the filter body in the present invention are assembled in a detachable manner, so that the disinfection body and the filter body can be replaced, repaired and maintained separately, and the long-term use costs of users are greatly reduced, thereby solving the technical problem existing in the related art.

An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter comprises a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium comprises a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame comprises a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.

An air purifier having a side-access or horizontally-removable air filter assembly may include a housing, a base plate, a filter plate, a filter, and an air blowing unit. In some configurations the air purifier also includes a UV-light source and a removable covering or panel. Once the removable cover is separated from the housing, the filter plate with the filter assembly may be slid horizontally into and out of the housing. Once the filter plate, filter, and UV-light source are removed from the housing, the filter may be replaced, cleaned, and/or inspected.

A high efficiency particulate air filter for the capture of virus particles is disclosed. The filter includes a coform three-dimensional fibrous matrix comprising a population of fibrillated polymeric nanofibers and a population of microparticles homogenously distributed throughout the fibrous matrix. In an embodiment, the microparticles are ion exchange resins. The virus particles are captured by the fibrous matrix and bind to the to the surface of the resins by permanent electrostatic forces and inactivated by the biocidal agent. A process for removing virus particles from an aerosol is also disclosed. The filter provides at least a log.sub.10 reduction value (LRV) greater than 3 for virus particles with a diameter smaller than 0.3 microns with a pressure drop of less than 200 Pascal at an aerosol face velocity of 5.3 cm/s.