The present invention relates to a dock shelter module that is disposed at a side of a warehouse and connects the inside and outside of the warehouse, dock shelter module comprising: a top frame; a pair of side frames coupled to both sides of the top frame, longitudinally extending, and forming a loading-unloading space in cooperation with the top frame; a bottom frame coupled to the lower ends of the side frames and having a dock leveler seated thereon; a first gate coupled to the top frame, disposed at the front of the loading-unloading space, and opening and closing the outside of the warehouse and the loading-unloading space; a second gate coupled to the top frame, disposed at the rear of the loading-unloading space, and opening and closing the inside of the warehouse and the loading-unloading space; and an air curtain generator installed on the bottom of the top frame between the first gate and the second gate, and forming an air curtain in the loading-unloading space in accordance with whether the first gate and the second gate are opened and closed.

A structure for providing an indoor space includes an air-sterilizing apparatus configured to suction in air existing in the indoor space and to sterilize the suctioned air, a droplet blocking table configured to discharge the sterilized air in a direction toward a table top so as to allow the discharged air to be suctioned in along a central axis of the droplet blocking table, an air-conditioning apparatus configured to move the air suctioned in by the droplet blocking table, and an ordering apparatus configured to perform an order for a menu according to information input from a user.

A structure for providing an indoor space includes an air-sterilizing apparatus configured to suction in air existing in the indoor space and to sterilize the suctioned air, a droplet blocking table configured to discharge the sterilized air in a direction toward a table top so as to allow the discharged air to be suctioned in along a central axis of the droplet blocking table, an air-conditioning apparatus configured to move the air suctioned in by the droplet blocking table, and an ordering apparatus configured to perform an order for a menu according to information input from a user.

A system is described to protect a person from exposure to pathogens in breathing. A control device which can be an adjustable or removable filter, a valve to switch air sources, added substances interruption of the air stream is controlled by a determination made by a machine learning system with a machine learning model usually implemented as a neural network. The determination is made on the basis of training of the model which can be one or multiple stages with one stage in a large server not in real time and another stage in a field device which uses sensors and other information sources to acquire data to make a decision concerning the relative risk of various circumstances. Conditions detected include presence of other persons, level of activity of the protected person and many other factors concerning the surroundings, activity and history of the protected person.

A pass box delivering an article with respect to a clean room includes a blower provided in an upper portion of the pass box, a first door on the clean room side, a first handle provided on the clean room side and opening and closing the first door, a first handle receiving portion rotating with the first handle in the pass box, a first handle receiving seat engaging with the first handle receiving portion in the pass box, and a storage stand provided in a lower portion of the pass box. The storage stand has a slit allowing air from the blower to be exhausted from an inner portion of the pass box.

A pass box delivering an article with respect to a clean room includes a blower provided in an upper portion of the pass box, a first door on the clean room side, a first handle provided on the clean room side and opening and closing the first door, a first handle receiving portion rotating with the first handle in the pass box, a first handle receiving seat engaging with the first handle receiving portion in the pass box, and a storage stand provided in a lower portion of the pass box. The storage stand has a slit allowing air from the blower to be exhausted from an inner portion of the pass box.

An apparatus for producing a clean air curtain to protect a first individual and a second individual from germ transfer between themselves has a housing having an input port and an output port. The apparatus comprises a fan disposed in the housing in communication with the input port to draw air into an input channel through the input port, and in communication with the output port through an output channel to force air from the input channel through the output channel and out the output port. The output channel configured to cause the air forced out the output port to create a laminar flow air curtain. The apparatus has an air filter positioned across the input channel to clean the air drawn through the input port. A method for protecting a first individual and a second individual from germ transfer between themselves with an air curtain.

An apparatus for producing a clean air curtain to protect a first individual and a second individual from germ transfer between themselves has a housing having an input port and an output port. The apparatus comprises a fan disposed in the housing in communication with the input port to draw air into an input channel through the input port, and in communication with the output port through an output channel to force air from the input channel through the output channel and out the output port. The output channel configured to cause the air forced out the output port to create a laminar flow air curtain. The apparatus has an air filter positioned across the input channel to clean the air drawn through the input port. A method for protecting a first individual and a second individual from germ transfer between themselves with an air curtain.

A hygiene management device for an entrance hall and a control method of the same are proposed. The hygiene management device may be installed in the space of the entrance hall, and when the opening of an entrance door is detected, air is discharged toward the entrance door by tilting an air discharger toward the entrance door, and when the closing of the entrance door is detected, the air discharger is tilted to a preset initial position to stop the discharging of air. Accordingly, during the opening of the entrance door, the introduction of external air into the space of the entrance hall may be minimized.

A hygiene management device for an entrance hall and a control method of the same are proposed. The hygiene management device may be installed in the space of the entrance hall, and when the opening of an entrance door is detected, air is discharged toward the entrance door by tilting an air discharger toward the entrance door, and when the closing of the entrance door is detected, the air discharger is tilted to a preset initial position to stop the discharging of air. Accordingly, during the opening of the entrance door, the introduction of external air into the space of the entrance hall may be minimized.