This invention provides a composition and aqueous dispersion comprising magnesium oxide, as a sole active agent or in combination with ammonium phosphate/ammonium polyphosphate for imparting anti-bacterial and/or anti-viral properties to textile products. The present invention further provides methods for preparing such compositions and aqueous dispersions and methods of using the same for textile finishing.

Garments and corresponding systems for preventing contamination of a clean environment are provided. The garment is formed, at least in part, of a filter medium such that air within the garment is permitted to pass from within the garment, through the filter medium, and into the surrounding environment while contaminants are retained by the filter medium. The garment may be substantially formed of the filter medium or may include one or more filter panels arranged around a substantially impermeable portion of the garment. The garment may further include a forced air inlet for coupling the garment to a forced air supply such as a powered respirator or an air handler. Forced air may then be supplied into the garment to further facilitate air circulation and filtration.

The present invention provides methods and systems for an air filter that includes a filtration material having at least one surface, an enclosed frame surrounding said filter material but exposing said one surface, said filter material having intermittent geometric shapes of latex on said at least one surface, said latex containing an enhanced additive.

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 device for air purification, incorporated into a vehicle, which comprises a case, fixed to the outside of the vehicle and having a longitudinal duct through which air passes, the air entering impure through at least one opening located in the front part, with respect to the direction of travel of the vehicle, and exiting through at least one opening located in the rear part under the suctioning effect of at least one fan disposed in the opening. From the inlet to the outlet, the air purification device successively includes the following devices: a photocatalytic reactor; a reverse microwave; an activated carbon filter; and a HEPA filter, just before the fans located in the outlet conduit.

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.

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 air cleaner including a case comprising an upper surface and a side surface, a sensor to measure a degree of contamination of air introduced into the case, a round portion in a shape that is curved on the upper surface of the case, and a sensor air inlet on the round portion and through which air is introduced.

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.

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.