The present disclosure discloses a discharge plasma disinfection device and method thereof. In the disinfection device, a gliding arc electrode pair generates the RNS-dominated reactive gas under the excitation of a gliding arc high-voltage power supply; and a dielectric barrier discharge electrode pair generates the ROS-dominated reactive gas under the excitation of a dielectric barrier discharge high-voltage power supply. These two reactive gases are introduced into a mixing chamber in a specific ratio and are subjected to an effective mixing reaction through an internal recycle system to obtain RNS/ROS mixed reactive gas in which reactive nitrogen species and reactive oxygen species coexist. The RNS/ROS mixed reactive gas may be directly configured to perform disinfection, and may also be configured to process an aqueous solution and then perform disinfection by the processed plasma-activated water.

A deodorization and sterilization apparatus and method, which increases an amount of generated active species and collects floating bacteria or odor materials in air at one place, such that the active species make contact with the collected floating bacteria or odor materials to achieve high-efficiency sterilization and deodorization. A pair of electrodes is provided, plasma discharge is carried out by applying designated voltage between the pair of electrodes, fluid passage holes are provided at corresponding parts of respective electrodes so as to communicate with each other, and at least one absorption member to absorb floating bacteria or odor materials is disposed at the downstream of a fluid passing through the fluid passage holes.

The invention relates to a method (S) for generating a plurality of cold-plasma jets at atmospheric pressure in order to treat a target (2), wherein said method includes the following steps: producing (S1) a primary cold-plasma jet (3) at atmospheric pressure using a plasma source (10); placing (S2) a substrate (20, 21, 30, 32, 34) near the target (2) to be treated, said substrate (20, 21, 30, 32, 34) including at least two through-holes; and passing (S3) the plasma through the through-holes (22) of the substrate (20) such as to generate at least two secondary cold-plasma jets (4) at atmospheric pressure.

Provided are methods of immunizing a viewport of a medical device against fogging before or during a medical procedure, and related apparatuses and devices. The methods comprise applying plasma to the viewport prior to use, thereby rendering a surface of the viewport highly hydrophilic. The methods eliminate or at least significantly reduce blur due to fogging.

Disclosed herein are apparatuses and methods for generating non-thermal plasma which can form reactive oxygen species (ROS), such as those used to neutralize bacteria and other pathogens in the air and surrounding area. Also disclosed are apparatuses and methods for neutralizing bacteria and other pathogens using ROS generated through the use of non-thermal plasma. Also disclosed are apparatuses and methods for generating ROS. Also disclosed are apparatuses and methods for treating air and nearby surfaces. Also disclosed herein are apparatuses for generating non-thermal plasma, and which can monitor and analyze the operational characteristics of a plasma field generated by the aforementioned devices and/or the electrical consumption characteristics of the power supply being used to generate the plasma field, which analyzed characteristics can be used to trigger an alarm to indicate that the device is not functioning optimally or as otherwise expected.

In an embodiment a device includes a thermoelectric component, an electrode arranged opposite the thermoelectric component and a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite a dielectric barrier discharge.

Disclosed are dielectric barrier discharge (DBD) devices and methods of use for sterilizing surfaces. The DBD devices generally include one or more first electrodes, one or more second electrodes or chemical reagent layers, and at least one dielectric layer between the one or more first electrodes and the one or more second electrodes or chemical reagent layers. In various configurations, the at least one dielectric layer is either (a) in contact with at least one of the first electrodes or (if present) at least one chemical reagent layer, or (b) is separated from the one or more first electrodes by a first gap and is also separated from the one or more second electrodes or chemical reagent layers by a second gap.

Provided are methods of immunizing a viewport of a medical device against fogging before or during a medical procedure, and related apparatuses and devices. The methods comprise applying plasma to the viewport prior to use, thereby rendering a surface of the viewport highly hydrophilic. The methods eliminate or at least significantly reduce blur due to fogging.

A plasma source for generating a disinfecting and/or sterilizing gas mixture, including an ionization chamber having a dielectric tubular portion, an inflow port for feeding a gas or gas mixture into the chamber, an outflow port for exhausting the disinfecting and/or sterilizing gas mixture out of the chamber, a first electrode positioned inside the dielectric tubular portion, and a second electrode positioned outside the dielectric tubular portion. The plasma source has a high voltage source having a high voltage output terminal, wherein an electrical conductor connects the output terminal to the first or second electrode, and a forced gas cooling system for cooling the ionization chamber.

A system for preserving cut-flowers using an atmospheric pressure plasma generator according to an embodiment of the present application includes a container that preserves cut-flowers, an air filter that extracts at least some of moisture contained in air in the container and discharges the same, an air compressor that generates compressed air from the air from which the at least some of the moisture was removed by the air filter, and a plasma generator that generates active species through plasma discharge using the compressed air generated from the air compressor as a plasma discharge gas.