Particle measurement apparatus comprises an inlet for receiving a gas sample for analysis, a photoionisation chamber, at least one light source arranged to illuminate an interior of the photoionisation chamber, first and second electrodes coupled to a power source and configured to provide a DC potential difference across at least a portion of the photoionisation chamber, and an outlet, together defining a gas flow path from the inlet, through the photoionisation chamber, and towards the outlet.

An ion source includes an external housing, an electrically conductive tip, a gas supply system, configured to supply an operating gas into the neighborhood of the tip, and a cooling system configured to cool the tip. The gas supply system includes a first tube with a hollow interior, and a chemical getter material is provided in the hollow interior of the tube.

The present invention generally relates to an x-ray source and specifically to an x-ray source suitable for large area x-ray generation. The invention also relates to a system comprising such an x-ray source.

An improved high-efficiency electrostatic air filter device implements a dust collection function and incorporates a material that captures and that is toxic to viruses/bacteria and causes viruses and bacteria to be rendered harmless by contact with this material. The device is composed of a charging section having a conductive antiviral media to charge any particles in the gas with a high electric voltage and a collecting section which contains or is composed of conductive material which has antiviral/antibacterial properties and a surface of opposite polarity or lower potential that will cause the aforementioned charged particles to adhere to the toxic material as the gas flows through or around the media. The collection section is formed with or coated by an inactivating material that inactivated pathogens when physically contacted.

This application relates to an electrostatic precipitator with an electromagnetic wave tube comprising a carbon nanotube (CNT)-based emitter. The electrostatic precipitator includes a charger configured to include the CNT-based emitter and ionize microparticles, in contaminated air introduced from the environment, by emitting an electromagnetic wave. The electrostatic precipitator further includes a collector configured to collect the ionized microparticles to discharge clean air.

A product removing method of introducing an atmospheric gas into a product remover including a corona discharge space to remove a product from the atmospheric gas, the product being generated inside a processing chamber under a low oxygen atmosphere, the method including: mixing the atmospheric gas with a high electric resistance gas to generate a mixed gas in a pipe or the corona discharge space, the pipe being connected between the processing chamber and the corona discharge space, the atmospheric gas being discharged from the processing chamber via the pipe, the high electric resistance gas having an electric resistance higher than an electric resistance of the atmospheric gas; and removing the product from the mixed gas by a corona discharge method in the corona discharge space into which the mixed gas is introduced via the pipe or in which the mixed gas is generated.

A dust removal apparatus includes: a collecting portion configured to collect gas existing inside a work room configured to separate a space inside the work room from a space outside the work room in a state where the gas is not circulable; and a compression portion configured to compress the gas collected by the collecting portion. Further, the dust removal apparatus includes: a jetting portion configured to jet out the gas compressed by the compression portion, the jetting portion being provided in the space outside the work room; and an ionizer portion configured to mix ions into the gas to be jetted out of the jetting portion when a voltage is applied to the ionizer portion, the ionizer portion being provided between the compression portion and the jetting portion.

Disclosed herein are embodiments of an invention relating to pathogen transfer mitigation and prevention apparatuses. Described herein are embodiments comprising one or more charged particle emitters, collectors, power circuits, and controllers. The invention described herein can effectively, for example, prevent, stop, and/or minimize the transfer of pathogens such as, for example, viruses, bacteria, fungi, protozoa, and/or worms. The invention described herein has application in many fields, including, for example, the agriculture, restaurant, food, livestock, pet, sports, entertainment, travel, and/or transportation industries. The invention described herein is of particular relevance given the recent and ongoing international coronavirus disease (COVID) pandemic.

Disclosed is a machine learning-based air handler and a control method thereof, the control method including collecting first data on an air quality of air flowing into the air handler, controlling a purification part based on the first data, collecting second data on an air quality of air passing through the purification part, and controlling the purification part according to a machine-learning model generated based on a setting value related to a control of the purification part, the first data, and the second data.

This application relates to an electrostatic precipitator with an electromagnetic wave tube comprising a carbon nanotube (CNT)-based emitter. The electrostatic precipitator includes a charger configured to include the CNT-based emitter and ionize microparticles, in contaminated air introduced from the environment, by emitting an electromagnetic wave. The electrostatic precipitator further includes a collector configured to collect the ionized microparticles to discharge clean air.