An electro-ionic device configured for being worn on the face of a person is disclosed. The electro-ionic device includes at least two electrical conductors spaced apart from each other defining at least a portion of a respiratory pathway therebetween and a circuit configured to apply a first voltage between the two conductors during inspiration and a second voltage greater than the first voltage during expiration.

An air treatment unit 10 for attachment to a fan coil unit 12 for treating air from an indoor setting, the air treatment unit 10 including: an inlet 14 for connection to a ducting system that receives indoor air; a treatment volume 22 for receiving air flow from the inlet 14; a UV-C light source 24 within the treatment volume 22 for exposing the air in the treatment volume 22 to UV-C radiation; and an outlet 16 for discharge of treated air to the fan coil unit 12, the outlet 16 is configured for connection to an inlet plenum 18 of the fan coil unit 12.

A semiconductor fabrication building is provided. The semiconductor fabrication building includes an ambient control surrounding and a makeup air handling unit configured to supply clean air to the ambient control surrounding. The makeup air handling unit includes a housing having an air inlet and an air outlet. The makeup air handling unit also includes a first filtration module positioned in the housing. The first filtration module includes a number of hollow fibers configured to guide air to flow from the air inlet to the air outlet. A porous layer is formed at an inner wall of each of the hollow fibers to filter airborne molecular contamination (AMC) having a selected size.

An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter. The IAQ parameter is one of: an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A mitigation module is configured to: selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first ON threshold and a second ON threshold; and selectively turn off the mitigation device based on a comparison of the IAQ parameter with an OFF threshold. A clean module is configured to determine a clean value for the IAQ parameter. A thresholds module is configured to, based on the clean value, determine the first ON threshold and the OFF threshold.

An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter. The IAQ parameter is one of: an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A mitigation module is configured to: selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first ON threshold and a second ON threshold; and selectively turn off the mitigation device based on a comparison of the IAQ parameter with an OFF threshold. A clean module is configured to determine a clean value for the IAQ parameter. A thresholds module is configured to, based on the clean value, determine the first ON threshold and the OFF threshold.

An air purifier capable of removing hazardous substances and viruses from air. The air purifier further includes: a body having an air inlet formed on a lower end thereof, an air outlet formed on an upper end thereof, and a flow path formed therein to move air upward; a pre-filter disposed in the flow path of the body; a box-shaped cell type discharge device disposed in the flow path of the body to generate active species; a dust collection device in the flow path of the body and having a discharge part with a linear discharge electrode and a dust collection part for collecting the dust charged through the discharge part; an ozone removal device in the flow path of the body to remove ozone generated from the discharge device and/or the dust collection device; and an air fan disposed in the flow path of the body.

A production device including an isolator housing to receive functional components of the production device and products in an interior of the production device and to hermetically seal the components from the surroundings. The production device includes at least one robot received in the isolator housing, wherein the robot is one or more of operable to carry out specific tasks or operable to be remotely controllable by means of a remote controller. The production device includes at least one linear movement unit received in the isolator housing and configured to move the at least one robot long a linear movement axis. The production device includes at least one control unit to control one or more of a movement or an operation of the at least one robot.

A production device including an isolator housing to receive functional components of the production device and products in an interior of the production device and to hermetically seal the components from the surroundings. The production device includes at least one robot received in the isolator housing, wherein the robot is one or more of operable to carry out specific tasks or operable to be remotely controllable by means of a remote controller. The production device includes at least one linear movement unit received in the isolator housing and configured to move the at least one robot long a linear movement axis. The production device includes at least one control unit to control one or more of a movement or an operation of the at least one robot.

Embodiments of the present disclosure include methods and systems of circulating air in an enclosed environment. In such embodiments, the system may comprise an air handling unit (AHU), the AHU including an indoor air inlet to receive an indoor airflow from the enclosed environment and an indoor air outlet to expel the indoor airflow, a conditioning element arranged between the inlet and the outlet configured to at least heat or cool the indoor airflow as it flows thereover, one or more fan units arranged between the inlet and the outlet configured to provide velocity to the indoor airflow, and an air treatment assembly (ATA) arranged within or proximate the AHU, the ATA including an air inlet configured to receive a portion of the indoor airflow received by the AHU indoor air inlet.

Embodiments of the present disclosure include methods and systems of circulating air in an enclosed environment. In such embodiments, the system may comprise an air handling unit (AHU), the AHU including an indoor air inlet to receive an indoor airflow from the enclosed environment and an indoor air outlet to expel the indoor airflow, a conditioning element arranged between the inlet and the outlet configured to at least heat or cool the indoor airflow as it flows thereover, one or more fan units arranged between the inlet and the outlet configured to provide velocity to the indoor airflow, and an air treatment assembly (ATA) arranged within or proximate the AHU, the ATA including an air inlet configured to receive a portion of the indoor airflow received by the AHU indoor air inlet.