The present invention provides a vented individual negative pressure enclosure system for extracting potentially contaminated air from an individual. The system includes an adjustable assemblable and disassemblable frame structure configured to surround a bed, chair, or toilet. A vapor-impermeable sheet extends over the frame structure. An air purification system communicates with a plurality of extraction vents positioned on or in the frame structure. The air purification system may be a water-filtration-based air purification system including a particle growth tube for increasing the size of aerosol droplets to facilitate capture. The air purification system includes a pump and HEPA filter and, optionally, a UV sterilizer.

A dust collector apparatus includes a housing, an airflow generation module and a filter. The housing has one side formed at least one intake vent-hole and another side formed of at least one exhaust vent-hole. An inner side of the housing has an airflow channel formed between the intake vent-hole and the exhaust vent-hole. The airflow generation module comprises an airflow drawing unit for drawing an airflow in order to form the airflow channel between the intake vent-hole and the exhaust vent-hole, a control module for controlling the airflow drawing unit, and a power module. The filter is detachably arranged at the intake end and used for filtering dust in the air sucked by the airflow drawing unit. The dust collector apparatus of the present invention allows the dust particles to be properly collected by the filter without secondary scattering, and guides the airflow to be exhausted smoothly.

An air purification system includes a conduit extending between an inlet and an outlet, each in fluid communication with an enclosed environment. Ambient air from the enclosed environment enters the conduit via the inlet and treated air exits the conduit and enters the enclosed environment via the outlet. The system further includes a fibrous filter disposed within the conduit and configured to treat the ambient air thereby generating the treated air, and a renewal unit disposed within the conduit and configured to renew the fibrous filter.

A humidifier/dehumidifier device is disclosed herein. The humidifier and dehumidifier both, respectively, evaporate water from and condense water into a shared (same) water storage container. The device is fitted with an air intake and at least one air outtake. In embodiments of the technology, one or more of the air intakes receives air from outdoors. One or both of an indoor and/or the outdoor intake is used to receive air based on a determination that an indoor and outdoor humidity and temperature is most efficient to achieve a desired indoor humidity or temperature.

An extraction hood includes a casing having one or more suction openings or mouths and a connection system to an outlet duct for the removal of the drawn air filter. Inside the casing there are one or more filters and one or more UV lamps designed to be used for disinfection, for the abatement of smells and greases, and for self-cleaning purposes.

Provided is an air cleaner, and more specifically, to an air cleaner in which a filter part using a photocatalyst is formed in a module type to facilitate replacement and cleaning and which includes an insert fan which is disposed inward from a suction port of a casing forming an exterior and including the suction port disposed at one side and a discharge port disposed at the other side, and suctions ambient air, a driving motor provided to be axially detachably coupled to the insert fan in a direction from the discharge port, and a suction unit fixing part in which an accommodation space, into which the insert fan and the driving motor are fixedly inserted in the direction from the suction port toward the discharge port and which is finished by inserting a cover member in the direction from the discharge port.

The present disclosure is related to surfaces having various topographical features and methods of making same. The disclosed features, created on various polycrystalline metallic substrates, may aid in effectively and rapidly reducing or eliminating detrimental effects of microbes. In some embodiments, the surface features may include channels and combinations of angular features such as ledges, ridges, and nodules, which may help adsorption of microbes to the surface, increase the surface chemical activity, and increase the effective surface area to support and/or accelerate the killing or deactivation of microbes. Some embodiments including reducing radii of curvature on channel ledges, intra-grain angular ridges, and angular nodules to accelerate disruption of microbial outer membranes by charge concentration and charge transfer. Also described are methods of producing the disclosed topographical surface features at low cost on various polycrystalline solid metal surfaces, for example cast, forged, rolled, drawn, wrought, deposited or coated.

A portable airborne pathogen control apparatus and system. Aspects of the present disclosure provide for a portable airborne pathogen control apparatus configured to be selectively positioned within an interior room and configured to enable a floor-to-ceiling flow of air within the interior room. The portable airborne pathogen control apparatus may comprise a housing with an air intake disposed at a lower area of a base housing and an air outlet disposed at an upper area of an elongated duct extending from the base housing. A blower fan housed within an interior chamber of the housing may be configured to direct a floor-to-ceiling flow of air through the interior chamber from the air intake to the air outlet. A volume of air directed through the interior chamber of the housing may be disinfected using one or more UV-C emitters and/or cold plasma generator(s) housing in the interior chamber of the housing.

A combination air filter and goggles includes a pair of goggles; an air filter; a tube having a first end attached to the goggles and a second end attached to the air filter; a first strap having two ends attached to the air filter; and a check valve disposed on the goggles. The air filter includes a centrifugal fan, a circuit board, a UV lamp, a filter element, a power supply, a housing, and a cover. Clean air produced by the air filter may flow to inside of the goggles.

An energy-transmissible air filtration system having at least one mechanical filter and at least one electromagnetic energy source. The electromagnetic energy source generates an electromagnetic energy wave or force that traverses the at least one mechanical filter. This results in substantially simultaneous mechanical filtration and energy-based decontamination of an airstream. Other features of the embodiments are also shown.