A module air curtain and recirculation system that can be incorporated into various tables and workstations that provides 1) an effective air curtain between individuals, 2) a reduction of harmful viruses and 3) the ability for two or more people to be in close proximity without having to wear personal protective equipment such as face masks.

Provided herein is an air cleaner (200) that includes: a communication interface (260) that receives information concerning operation contents from a server (100); and a processor (210) that, upon partial or complete termination of communication with the server (100), initializes the information concerning operation contents, or initializes a setting concerning acquisition of the information concerning operation contents.

An air purifying device includes a purifying apparatus including a hollow purifying shell having an interior forming a purifying cavity. A filtering component configured to filter air is disposed in the purifying cavity. An air supply apparatus includes an air supply shell. An interior of the air supply shell is hollow to form an air supply cavity. An air supply inlet and an air supply outlet communicating with the air supply cavity are formed in the air supply shell. The air supply apparatus is configured to supply air outwards. The air purifying device includes an air guide apparatus that includes an air guide shell. An interior of the air guide shell is hollow to form an air guide cavity. The air guide apparatus is configured to deliver air into the air supply apparatus. An air flow driving apparatus is disposed in the purifying apparatus and/or the air supply apparatus.

A system reduces risk of pathogen exposure within a space that is located within a facility having a plurality of spaces that periodically have one or more people within the space. The system includes one or more occupancy sensors that are configured to provide an indication of when the space is occupied and when the space is not occupied. A sanitizer is configured to sanitize surfaces within the space when activated. A controller is operably coupled with the one or more occupancy sensors and the sanitizer. The controller is configured to determine a designated time to sanitize the space based at least in part upon information received from the one or more occupancy sensors and to automatically instruct the sanitizer to sanitize surfaces within the space at the designated time.

A system reduces risk of pathogen exposure within a space that is located within a facility having a plurality of spaces that periodically have one or more people within the space. The system includes one or more occupancy sensors that are configured to provide an indication of when the space is occupied and when the space is not occupied. A sanitizer is configured to sanitize surfaces within the space when activated. A controller is operably coupled with the one or more occupancy sensors and the sanitizer. The controller is configured to determine a designated time to sanitize the space based at least in part upon information received from the one or more occupancy sensors and to automatically instruct the sanitizer to sanitize surfaces within the space at the designated time.

A belt-type electric dust collection device capable of automatic cleaning includes a dust collection belt including a plurality of flat parts spaced apart at a predetermined distance, and a plurality of first bent parts and second bent parts formed at both ends of the plurality of flat parts. A plurality of first rollers are provided in a line at the plurality of first bent parts of the dust collection belt, to support and guide the dust collection belt. A plurality of second rollers are provided in a line at the plurality of second bent parts of the dust collection belt. A plurality of electrode plates are provided between the plurality of flat parts of the dust collection belt. A belt cleaning part is provided at one side of the dust collection belt, and a driving part is provided to move the dust collection belt.

A belt-type electric dust collection device capable of automatic cleaning includes a dust collection belt including a plurality of flat parts spaced apart at a predetermined distance, and a plurality of first bent parts and second bent parts formed at both ends of the plurality of flat parts. A plurality of first rollers are provided in a line at the plurality of first bent parts of the dust collection belt, to support and guide the dust collection belt. A plurality of second rollers are provided in a line at the plurality of second bent parts of the dust collection belt. A plurality of electrode plates are provided between the plurality of flat parts of the dust collection belt. A belt cleaning part is provided at one side of the dust collection belt, and a driving part is provided to move the dust collection belt.

A composite air sterilization purifier includes: a particle separation part for separating, from bacteria and viruses in the air, dust in the air suctioned through the intake port; an electrostatic precipitation part for collecting dust, bacteria and viruses in the air having passed through the particle separation part; an ultraviolet sterilization part, which emits UVC at the electrostatic precipitation part to remove the bacteria and viruses collected in the electrostatic precipitation part; a photocatalyst filter for sterilizing the air having passed through the ultraviolet sterilization part; a plasma sterilization part, which increases the density of the bacteria and the viruses in the air having passed through the photocatalyst filter, so as to intensively remove the bacteria and the viruses; and an active species filter for absorbing harmful gas, ozone, and residual active species in the air having passed through the plasma sterilization part.

A composite air sterilization purifier includes: a particle separation part for separating, from bacteria and viruses in the air, dust in the air suctioned through the intake port; an electrostatic precipitation part for collecting dust, bacteria and viruses in the air having passed through the particle separation part; an ultraviolet sterilization part, which emits UVC at the electrostatic precipitation part to remove the bacteria and viruses collected in the electrostatic precipitation part; a photocatalyst filter for sterilizing the air having passed through the ultraviolet sterilization part; a plasma sterilization part, which increases the density of the bacteria and the viruses in the air having passed through the photocatalyst filter, so as to intensively remove the bacteria and the viruses; and an active species filter for absorbing harmful gas, ozone, and residual active species in the air having passed through the plasma sterilization part.

Disclosed herein is an artificial intelligence device. An an artificial intelligence device according to an embodiment of the present invention includes a communication unit that obtains an external environmental factor and an internal environmental factor collected by a sensor and a processor that provides the internal environmental factors to an environmental factor prediction model to predict a subsequent internal environmental factor and allows a ventilation system and an air cleaning system to operate cooperatively with each other based on the predicted internal environmental factor.