An essential oil atomizer includes an essential oil receptacle in a housing; first and second fluid connectors connected to the essential oil receptacle; a water reservoir on a bottom of the housing; first and second water lines connected to the water reservoir; a first flexible tube interconnected to the first water line and the first fluid connector; a second flexible tube interconnected to the second water line and the second fluid connector; a bracket on the water reservoir; a peristaltic pump on the bracket; two openings on one side of the peristaltic pump; and an electric motor on one surface of the peristaltic pump. The first flexible tube passes through one opening, inside of the peristaltic pump and the other opening. The peristaltic pump includes a rotatable disc operatively connected to the electric motor, three shafts secured to rotatable disc, and three bearings put on the shafts respectively.

A mobile disinfection cart contains: a body, a drive system, a water absorption rake, a brush disc, a lid, an air inlet defined on a rear end of the lid, a sterilization structure accommodated in the cover, located above the chassis, facing the drive system, and communicating with the air inlet, an air outlet defined on the lid, an air conduit communicating with the sterilization structure and the air outlet. The mobile disinfection cart further contains a filter fixed in an air conduit, a storage tank secured on the body and communicating with the brush disc, an accommodation box disposed on the body and being in communication with the sterilization structure, and a power supply fixed on the body and electrically connected with the drive system and the sterilization structure.

Solution distribution systems and methods of manufacturing and operating the same are provided. Solution distribution systems discussed herein are configured to dispense an anti-pathogenic solution into an air stream managed by an air handling system. Such solution distribution systems include a dispersion nozzle assembly structured to dispense the anti-pathogenic solution into the air stream in a dispersion pattern. The solution distribution systems also include a pump module configured to deliver the anti-pathogenic solution to the dispersion nozzle assembly at a dispersion pressure. The disclosed solution distribution systems further include a controller disposed in electrical communication with a control valve and the pump module. The controller is configured to engage the control valve to dispense the anti-pathogenic solution via the dispersion nozzle assembly into the air stream for a dispersion event period and at a dispersion interval.

A desktop personal breathing space UV-C air sterilizer in which sterilized air from the top of the sterilizer is adjustably directed to the space from which an individual inhales, and in which ai exhaled by the individual air is mixed with air from the general area of the individual and drawn into the bottom of the UV-C air sterilizer across a horizontally disposed UV-C source, to provide a directional stream of sterilized air to the personal breathing space of the individual. Methods are disclosed.

A ventilation system for removal of aerosols including bacteria and viruses such as the COVID-19 Coronavirus, and airborne debris from dental/medical operatories is provided. This ventilation system is comprised of (1) a stationary hood, secured at a specific distance above a patient that pulls contaminated air from the operatory, (2) ducting that carries the contaminated air away from the operatory, (3) a UV Ozonator that treats the air and cleans it of viral and bacterial aerosols and airborne debris before (4) expelling it to the outside through a specified length of terminal duct. The combination of certain embodiments in this invention create an effective means of aerosol and airborne debris removal in dental/medical operatories or other indoor spaces.

A method and apparatus are disclosed for at least partially purifying a fluid via a germicidal irradiation. In various aspects, the apparatus comprises at least one fluid-moving element, located in a housing, for moving a fluid through at least one fluid inlet in the housing towards at least one fluid outlet in the housing, wherein the housing comprises a dividing wall that includes at least one fluid-flow aperture in a fluid-flow pathway between the inlet and the outlet, at least one fluid-flow expansion region, and a plurality of chamber regions; at least one radiation source that provides ultraviolet radiation for irradiating the fluid in at least one of the chamber regions; and at least one full height fluid-flow blocking element, each located between two adjacent chamber regions, for at least partially blocking a fluid-flow of fluid flowing between the two adjacent chamber regions and producing a major region of turbulent fluid-flow in at least one of the two adjacent chamber regions.

An air disinfection device includes: a housing that includes an inlet port for taking air therethrough and a disinfection chamber that has a shell in a shape of a truncated ellipsoid. The device also includes: a disinfection head that is disposed in the inlet port and includes a light source for generating disinfection light that disinfects the air in the disinfection chamber, where the light source is located substantially on a plane where a first focal point of the truncated ellipsoid is located. The disinfection head further includes a fan for taking the air through the inlet port to the disinfection chamber and a filter for filtering the air. The device further includes a power source electrically coupled to the disinfection head and configured to provide electrical power for the disinfection head.

A disinfectant misting system and assembly operably configured to selectively control emission of an atomized spray of disinfectant solution within an enclosed structure at desired times, in desired locations, and for a desired amount of flow through at least one electronic control unit in an effective and efficient manner, and comprising a liquid supply housing with a liquid disinfectant storage tank housing a disinfectant solution, a disinfectant supply pump, an electronically controlled room pressure regulation component, and an electronically controlled pump pressure regulation component fluidly couplable to a liquid conduit assembly operably configured to transport the disinfectant solution to at least one disinfectant emission housing operably configured to emit an atomized spray of the disinfectant solution into the enclosed room space.

An air purification system, includes a UVC light source arranged within an internal space of a purification chamber and adapted to irradiate the internal space with UVC, an airflow system arranged to introduce environmental air from outside of the air purification system into the internal space of the purification chamber and expel purified air from the purification chamber back outside of the air purification system, and a light blocking system arranged to block a substantial amount of the irradiated UVC from emitting outside of the air purification system, the light blocking system comprising a high-air-flow open structure mounted in the airflow system of the purification chamber, wherein the open structure comprises a front surface, rear surface and a thickness, wherein the front and rear surfaces have a plurality of open areas connected through the thickness, and wherein at least one of the plurality of open areas is of a size with respect to the thickness to block light from traversing the thickness when an angle of incidence is less than approximately 10 degrees.

An information processing system includes a processor configured to: acquire reservation information, the reservation information being information about a reservation of a booth; and make a determination regarding an improvement of an air environment by an improvement mechanism that improves the air environment provided inside the booth, on a basis of the acquired reservation information.