The present invention provides an intelligent air shield formation device, having a plurality of nozzles are configured to discharge purified air towards ground, detecting a body region of the detected person, generating region information, controlling the plurality of nozzles corresponding to the region information, generating movement information based on a speed of movement of the body region, controlling the shape of the region information to be deformed based on the movement information.

A wind barrier generation system with protective function and a method of generating protective air pressure difference, applied to a protected space, the wind barrier generation system includes a person identification system, a matrix wind field generation system, a filter system, and a wind field control system. The wind field control system calculates a wind field control range parameter based on a person range coordinate transmitted from the person identification system, and maps the wind field control range parameter to the matrix wind field generation system to select a first range circle, and outputs a wind field control command to a matrix wind field generation system, to control wind speeds of the first range circle to be different from that of the other part in the matrix wind field generation system, thereby forming a protective wind barrier on the detected person.

In a contaminated environment with health threatening aerosol a helmet with transparent face shield as an alternative to mask can be used. The helmet protects the entire head of a person using a transparent shield that is knotted at the back of the neck. The helmet uses a fan to suck the environment air, filter it with an aerosol filter and releases the clean air into the interior of the helmet. The contaminated air inside the helmet is filtered and then the clean air is sucked by another fan and released to the environment. The fans are battery powered and their speed can be controlled using sensors and a controller.

Hygiene regulations and social distancing are very effective in blocking short distance infections. During the lockdown, the distance rules can usually be adhered to, but what happens when the actual lockdown is over, and the people meet again in a confined space? Then additional effective and efficient protection is essential to stabilize infection rates. Since the viruses are spread by contact and droplet infection, technical devices are required that effectively intervene in the chain of infection and effectively block infection. An effective protection is the respiratory mask as known since 100 years.

This patent application discloses an alternative to mask that is an aerosol protection helmet (APH) for various applications in the environment. The aerosol protection helmet consists of adjustable air sucking and blowing devices in different form factors based on the application. The aerosol protection helmet protects against any aerosol in the environment.

An air curtain air cleaner and sanitation system that incorporates established active bipolar ionization technology with threshold air delivery air curtains that provide conditioned airflow to form a lamination airflow barrier typically between openings in a structure.

A method for manufacturing an air curtain device includes steps of: a) providing a frame that includes two side wall bodies and two end wall bodies cooperatively defining an inner space thereamong, and an upper opening and a lower opening through which the inner space communicates with the external environment; b) covering an upper surface and a lateral outer surface of the frame with a first covering layer; c) closing the lower opening by placing an air-permeable plate; d) sealing a gap between the air-permeable plate and the frame by a first adhesive; e) removing a portion of the first covering layer that covers the upper surface of the frame; and f) closing the upper opening by a cover that is sealingly connected to the frame.

A booth including an ejecting unit that ejects air into an opening portion leading to an internal space partitioned from an external space. The ejecting unit forms a first airflow that suppresses introduction of a disturbance from the external space into the internal space and a second airflow that suppresses introduction of the first airflow into the internal space inside the first airflow.

A dust removal device blows air toward a subject and removes dust. The dust removal device includes a fan arranged to blow air, and a blow-out location changing part arranged to change a blow-out location of air that is blown by the fan and to move toward the subject. The blow-out location changing part is arranged to change the blow-out location in accordance with a height of the subject such that the air is blown toward the subject from a neck down.

Cooling units are provided. The cooling units include a base having a housing with control components and a cooling tower attached to the base having an inner flow path and an exterior surface. An air distribution system is attached to the cooling tower and includes an air distribution chamber defined between the first and second enclosures and a cover is disposed on an exterior surface of the second enclosure. A plurality of dispersing apertures are formed within the first enclosure to generate a curtain of cool air to be dispensed from the air distribution system. The control components are configured to convey air through the base, the cooling tower, and the air distribution system to dispense air through the cool air dispenser and the warm air dispenser.

Disclosed is an air umbrella apparatus including an air suction pipe having an air suction hole in an upper end thereof, a water collection pipe disposed concentrically with the air suction pipe and having an upper end coupled to a water-collection-inducing pipe for guiding rain or snow downward, an exhaust pipe disposed concentrically with the water collection pipe and having an upper end coupled to an exhaust-guiding pipe for guiding air outward, a communication pipe coupled to the air suction pipe, the water collection pipe, and the exhaust pipe for communicating the air suction pipe with the exhaust pipe, and a blower disposed between the exhaust pipe and the water collection pipe for the introduction and exhaust of air. The exhausted air forms an air curtain having a predetermined area above the exhaust-guiding pipe, thereby preventing rain and snow from falling from the exhaust-guiding pipe.