A catalyst adapted for generating hydrogen peroxide induced by a temperature difference and a method for environmental disinfection using the same are provided. The catalyst includes a thermoelectric material distributed on a substrate. The thermoelectric material induces a reaction between water vapor and oxygen contained in the air through a temperature difference to generate hydrogen peroxide, to serve a sterilization function through the hydrogen peroxide generated. The method for environmental disinfection using the catalyst includes the following. The catalyst is placed in an environment with a temperature difference. The catalyst is caused to induce a reaction between water vapor and oxygen contained in air through the temperature difference to generate hydrogen peroxide without applying power, and serve a sterilization function through the hydrogen peroxide generated.

An indicator and method of use thereof, and indicator system and method of use thereof are provided to determine the degree of an oxidative treatment. An indicator is incorporated into the oxidative treatment. The object and the indicator are subjected to the oxidative treatment. A discoloration of the indicator occurs based on an oxidation of the polymer by a process condition of the oxidative treatment oxidizing the polymer. The discoloration of the indicator is measured against a threshold color value to determine the degree of the oxidative treatment.

An improved vaporizer part, such as an evaporator element of a disinfection device is for an aqueous solution of hydrogen peroxide. The evaporator element includes one, and/or a branching, meandering structure, in which the straight sections of the groove are joined by 180-degree meanders near edges of the evaporator element. An end pit with an overflow guard is for overflown liquid. Heating elements are used both in connection with the evaporator element to enhance evaporation and on the inner surfaces of the device to prevent condensation. An air blower creates desired vortices near the surface of the evaporator element. The air control element also makes the air flow more laminar. The actual travel of the liquid on the evaporator element functions gravitationally on an inclined surface, and the capillary effect increases the evaporating area of the liquid. A disinfection device includes the vaporizer part.

A sanitisation system comprising a chemical vaporising apparatus for storing and vaporising a sanitising chemical com- position. The chemical vaporising assembly comprising a housing configured to receive and retaining one or more sanitising chemical composition containing cartridges, a vaporiser located within the housing, the vaporiser configured to receive and convert a sanitising chemical composition in the chemical containing cartridges into a vapor, and an air purifier assembly located within the housing, the air purifier assembly configured to purify the air by removing vaporised sanitising chemical composition from the air and maintain a low humidity environment.

A method of facilitating sanitizing interior spaces of an aircraft using a pre-conditioned air (PCA) system. The method comprises cutting an opening in a duct wall of a pre-conditioned air (PCA) supply duct of the PCA system. Further, the method comprises installing a device in the PCA supply duct around the opening, coupling an inlet opening of the device with a device outlet port of a sanitizing device after the installing, wherein a sanitizing agent generator of the sanitizing device generates a sanitizing agent for transferring the sanitizing agent to the inlet opening through the device outlet port. Further, the method comprises injecting the sanitizing agent into the PCA supply duct from an outlet opening of the device based on the transferring. Further, the sanitizing agent mixes with the PCA based on the injecting. Further, the sanitizing agent is supplied to the interior space along with the PCA.

A sterilization challenge device for verifying the efficacy of a gas sterilization process includes an outer container, an inner container, a chemical indicator, and a cap. The outer container includes an open end, a closed end, a chamber configured to contain the inner container containing the chemical indicator, and at least one hole arranged proximate the open end. The cap is configured to engage with the outer container to close the open end, and the at least one hole is configured to provide a flow path for the gaseous sterilant into the chamber.

An improved poultry production method comprising providing dry hydrogen peroxide (DHP) to poultry eggs, chicks and birds, and devices for providing DHP to poultry production during laying, incubating, hatching, and growing.

In various embodiments, an air purifier capable of destroying and deactivating airborne contaminants such as SARS-CoV-2 is described. The air purifier comprises a photocatalytic system comprising at least one photoactivated semiconductor photocatalyst and a lamp configured to irradiate and excite the at least one photoactivated semiconductor photocatalyst to generate reductive and/or oxidative reactive species from oxygen and/or water on the photocatalyst surface. In various embodiments, the photocatalytic system comprises a stack of PCB cards, each card having a photocatalytic layer disposed thereon, or a 3-dimensionally ordered macroporous (3-DOM) structure comprising an open cell lattice.

Methods, systems, and apparatuses for producing one or more of trioxygen, reactive nitrogen species, hydrogen and its ions, oxygen and its ions, and electronically modified oxygen derivatives from oxidizing agents that are exposed to certain frequencies of photon/phonon emissions, exposed for certain amounts of time, and exposed to certain intensities of photon/phonon emissions. The oxidizing agent or oxidizing agents can be exposed to multiple frequencies and wavelengths of photon/phonon emissions and multiple exposures of photon/phonon emissions. The methods displayed provide a new paradigm to perform photocatalytic oxidation of substrates using photon/phonon emissions and/or MPA as energy input, trioxygen, hydrogen and oxygen and its isotopes as the catalysts and oxidizing agents as the oxygen source and the elimination or reduction of dissociation reactions to minimize hindrances to the reactions.

An air purification system, the air purification system comprising: a first air purification device, the first air purification device comprising: an enclosure, the enclosure comprising a top, sides, and bottom; an inlet vent located at or near the top of the enclosure; a first filter located in the enclosure and below the inlet vent; a blower located in the enclosure and below the first filter; at least one UV light source located inside the enclosure below the blower; at least one disinfectant sprayer located inside the enclosure below the blower; a second filter located in the enclosure, and below the UV light source and the sprayer; an outlet vent located below the second filter and at or near the bottom of the enclosure; a control center located on the enclosure, the control center comprising: a battery, a computing device in communication with a network; a navigation system in communication with the computing device; a camera in communication with the computing device; a moveable arm located on the enclosure, the moveable arm in communication with the computing device; an air sensor located on the rotatable arm, the air sensor in communication with the computing device; a plurality of wheels attached to the enclosure and configured to move the first air purification device; a motor in communication with one or more of the plurality of wheels, the motor in communication with the computing device; where when the air purification system is activated, the flow of air through the first air purification device is from the ambient air, through the inlet vent into the enclosure, then through the first filter, then through the blower, then through UV light rays emanating from the UV light source, then through a spray of disinfectant from the at least one disinfectant sprayer, then through the second filter, then out of the enclosure through the outlet vent back into the ambient air.