A pathogen disinfection fan system includes a fan having blades or other motive device to induce airflow in a particular direction and a motor coupled to the fan. The motor configured for rotating the fan blades or motive device to induce the airflow in the particular direction. The system further includes a ceiling mount and a connecting member connecting the ceiling mount to the fan and motor. Further, the system includes a pathogen disinfection apparatus mounted to the connecting member. The apparatus including at least one ultraviolet (UV) light source configured to emit UV light having a mean peak wavelength between 200-280 nanometer in a target volume, in a substantially horizontal path substantially normal to the direction of the induced airflow to at least partially inactivate pathogens exposed to the emitted UV light in the path of the emitted light in the target volume.

A system for systematically disinfecting shopping carts and other items includes an arch through which shopping carts or other items may be passed and disinfected. For disinfecting, carts are pushed through a passageway defined by the arch while nozzles positioned in the arch are actuated to dispense a disinfecting fluid. A fine mist of disinfecting fluid envelopes all surfaces of the cart as it passes through the passageway, thereby sanitizing the entire surface area of the cart with a reduction or elimination of residue accumulation. When spraying is deactivated, at least one solenoid is controlled to depressurize the tubing connected to the nozzles.

Embodiments of the present disclosure disclose a multipurpose ultraviolet (UV) floor curing device. The device includes a mobile carriage, a UV panel, and a control device. The mobile carriage is configured to move on a floor applied with a photocurable coating. The UV panel is coupled to the mobile carriage and removably secures a plurality of radiation units configured to emit UV light of a predetermined intensity capable of curing the photocurable coating. The UV panel is configured to transition between a floor configuration and a non-floor configuration. The control device configured to drive the UV panel for the plurality of radiation units to project the UV light towards the ground substantially underneath the UV panel in the floor configuration and towards elevated surfaces proximate to the ground in the non-floor configuration.

An embodiment discloses a sterilization module comprising: a frame including a support part that includes one surface and one end, and a fastening part connected to the one end; a first circuit board disposed in the fastening part; and an ultraviolet irradiation device disposed on the first circuit board, wherein the support part comprises: the other end facing the one end; and a side end facing the other end. The frame comprises: a protrusion connected to the side end of the support part; and a guide part connected to the other end of the support part. The fastening part and the guide part extend in a first direction perpendicular to one surface of the support part, and the protrusion extends in a direction opposite to the first direction. The guide part comprises: a first guide part and a second guide part that are spaced apart from each other in a second direction parallel to the one end. The other end comprises a recess between the first guide part and the second guide part, wherein the recess is concave toward the one end.

A method for removing or preventing a microbial growth, biofilm, biomass and/or mineral deposit on a hard surface inside an SO.sub.2 scrubber is disclosed. In particular, biocide compositions may be dosed in pulse or continuously for the reduction and prevention of biofilms on the hard surfaces inside an SO.sub.2 scrubber. A biocide composition disclosed here uses one or more non-oxidizing biocides, especially a mixture of one or more quaternary ammonium compounds and one or more other biocides.

An array of non-thermal plasma emitters is controlled to emit plasma based on application of an electric current at desired frequencies and a controlled power level. A power supply for an array controller includes a transformer that operates at the resonant frequency of the combined capacitance of the array and the cable connecting the array to the power supply. The power into the array is monitored by the controller and can be adjusted by the user. The controller monitors reflected power characteristics, such as harmonics of the alternating current, to determine initiation voltage of the plasma and/or resonant frequency plasma emitters. The array of non-thermal plasma emitters may be used in therapeutic, diagnostic, and/or medical sanitization applications, such as to prevent, limit, and/or treat the development of diseases caused in humans by infectious agents.

A system for sterilizing viruses includes beam generation circuitry for generating a radiating wave having radiating energy therein at a predetermined frequency therein. A controller controls the radiating wave generation at the predetermined frequency. The predetermined frequency equals a resonance frequency of a particular virus. The predetermined frequency induces a mechanical resonance vibration at the resonance frequency of the particular virus within the particular virus for destroying a capsid of the particular virus. Radiating circuitry projects the radiating wave on a predetermined location to destroy the particular virus at the predetermined location.

A payment terminal sanitizing device includes a housing having a base member configured to removably secure to a payment terminal. The base member includes tabs and slots that engage corresponding tabs and slots on the payment terminal. A top cover is removably secured to the base member. The sides of the top cover and base member curve outwardly to form an interior volume between the top cover and base portion. The interior volume includes a plurality of brackets configured to support individual UV lights that are positioned on opposing sides of the interior of the housing. The UV lights are operably connected to a power source, such as a wall outlet, for example. The UV lights are oriented such that they illuminate or irradiate the input mechanisms of the payment terminal, in order to prevent the spread of germs between individual users of the payment terminal.

A method for producing a protein composition containing a protein (A), a radical scavenger (RS), and at least one hydrogen-bond-formable compound (HC) selected from the group consisting of amino acids, peptides, and proteins other than the protein (A). The method including a sterilization step of radiosterilizing an unsterilized protein composition, wherein the unsterilized protein composition contains the protein (A), the radical scavenger (RS), and the hydrogen-bond-formable compound (HC), the protein (A) contains at least one functional group selected from the group consisting of sulfide, amide, hydroxyl, amino, and carboxyl groups, the hydrogen-bond-formable compound (HC) contains at least one functional group selected from the group consisting of sulfide, amide, hydroxyl, amino, and carboxyl groups, the at least one functional group in the protein (A) is capable of binding to the at least one functional group in the hydrogen-bond-formable compound (HC) via a hydrogen bond.

A disinfection and sterilization control apparatus includes a disinfection and sterilization control component configured to obtain usage data of a space; and a disinfection and sterilization component electrically coupled to the disinfection and sterilization control component and configured to disinfect and sterilize the space under the control. The disinfection and sterilization control component controls the disinfection and sterilization component to perform disinfection and sterilization operation when the usage data meets a condition of triggering a disinfection and sterilization operation. When the usage data of the space meets the condition, the disinfection and sterilization apparatus is controlled to automatically disinfect and sterilize the space, achieving smart and effective disinfection and sterilization on an interior space, for example of an elevator car, thereby avoiding cross contamination, ensuring service safety of the elevator and protecting users' health.