A control device controls a plurality of air conditioners that are placed in a space so as to adjoin. A designation unit designates an air conditioner being placed in an area in the space where presence of any person is detected, as a first air conditioner, and designates an air conditioner being placed adjacent to the first air conditioner, as a second air conditioner, among the plurality of air conditioners. A control unit causes the first air conditioner to carry out either of cooling operation and heating operation as air conditioning operation, and causes the second air conditioner to carry out air blowing operation with an air volume and a wind direction that are equivalent to an air volume and a wind direction of the air conditioning operation by the first air conditioner.

Systems and methods for limiting infiltration of cabin air into the flight deck of an aircraft, where the systems include at least one upper nozzle disposed adjacent to and above an outer upper edge of a flight deck doorway and directed downwardly, and at least one lower nozzle disposed adjacent to and below an outer lower edge of the flight deck doorway and directed upwardly; a conduit system to deliver air from a flight deck air supply to the upper and lower nozzles; and an airflow controller configured to provide sufficient air flow from the flight deck air supply to the upper and lower nozzles to create directional airstreams across the gaps between the closed flight deck door and the upper and lower edges of the flight deck doorway, so that the airstreams limit infiltration of cabin air into the flight deck via the gaps.

Systems and methods for limiting infiltration of cabin air into the flight deck of an aircraft, where the systems include at least one upper nozzle disposed adjacent to and above an outer upper edge of a flight deck doorway and directed downwardly, and at least one lower nozzle disposed adjacent to and below an outer lower edge of the flight deck doorway and directed upwardly; a conduit system to deliver air from a flight deck air supply to the upper and lower nozzles; and an airflow controller configured to provide sufficient air flow from the flight deck air supply to the upper and lower nozzles to create directional airstreams across the gaps between the closed flight deck door and the upper and lower edges of the flight deck doorway, so that the airstreams limit infiltration of cabin air into the flight deck via the gaps.

A testing apparatus including a base and a preheating unit arranged on the base is provided. The preheating unit includes a gas generator, a blocking mechanism and a heating device. The gas generator is configured to discharge air toward the base to form an air wall. The blocking mechanism is located above the air wall and forms a heat preservation space with the air wall. The heating device is arranged in the heat preservation space.

A tabletop laminar flow HEPA filtered air curtain, for use as a bio-safety separation barrier for the personal protection of individuals from a respired aerosol, is provided. The air curtain has a rectangular cabinet. The cabinet is partitioned into a fan housing, in fluid communication, with a HEPA filter box. The fan housing has an air intake. A fan assembly is mounted in the fan housing. The fan assembly has a ducted housing, in fluid communication with the ambient air intake, and a blower. A horizontal HEPA filter is mounted in the filter box so that a blower discharge passes through the HEPA filter, and upwardly and uniformly through an elongated laminar flow nozzle in a top wall of the filter box.

A tabletop laminar flow HEPA filtered air curtain, for use as a bio-safety separation barrier for the personal protection of individuals from a respired aerosol, is provided. The air curtain has a rectangular cabinet. The cabinet is partitioned into a fan housing, in fluid communication, with a HEPA filter box. The fan housing has an air intake. A fan assembly is mounted in the fan housing. The fan assembly has a ducted housing, in fluid communication with the ambient air intake, and a blower. A horizontal HEPA filter is mounted in the filter box so that a blower discharge passes through the HEPA filter, and upwardly and uniformly through an elongated laminar flow nozzle in a top wall of the filter box.

An air shower device with a non-defeatable function of removing contaminants from objects within a receiving space includes a room, a first barrier, a second barrier, and two revolving doors. The room defines the receiving space. The first barrier is disposed in the receiving space. The second barrier is disposed in the receiving space. The first barrier and the second barrier are misaligned with each other. The first barrier and the second barrier divide the receiving space into a plurality of channels connected to each other. The channels are arranged in a zigzag manner. The two revolving doors are installed at two ends of the channels.

System and method to reduce risk of patient infections (HAI), using operating rooms (chambers) equipped with suitable automatic airborne sterilizing agent generators, sensors, mechanisms, automatic air control devices, and laminar flow devices. After suitable safety checks, the system isolates the interior air from external air, and activates an air phase anti-microbial agent generator, filling the room with an air-phase anti-microbial agent. After sterilization, the invention deactivates the generator then restores the connection to outside sterilized air. The chamber also comprises an intelligent platform comprising video cameras, and computer vision systems configured to identify humans and medical supplies, read optical tags, and correlate recognized objects with RFID tag data. The intelligent platform can be configured to automatically detect and warn on conditions associated with a high risk of HAI, optimize the sterility of the chamber, automatically detect other operating room issues, and interface with outside computerized medical databases and facilities networks.

An elevator ventilation system comprising an ultraviolet source that illuminates elevator system air blown through an illumination chamber, and an air filter that filters the air as it flows through the chamber. The ultraviolet source is blocked from view from outside the illumination chamber. An air curtain emitter may expel a curtain of air across the elevator doorway, limiting air communication between an elevator interior and the elevator landing when elevator doors are open. An air outlet may be shaped to receive an elevator light fixture and to expel air into the elevator interior via an aperture adjacent the light fixture. An air curtain emitter may comprise an air outlet slot shaped to expel a curtain of air separating an interior of the elevator car into at least two air compartments defined by the “barrier” of the air curtain.

An elevator ventilation system comprising an ultraviolet source that illuminates elevator system air blown through an illumination chamber, and an air filter that filters the air as it flows through the chamber. The ultraviolet source is blocked from view from outside the illumination chamber. An air curtain emitter may expel a curtain of air across the elevator doorway, limiting air communication between an elevator interior and the elevator landing when elevator doors are open. An air outlet may be shaped to receive an elevator light fixture and to expel air into the elevator interior via an aperture adjacent the light fixture. An air curtain emitter may comprise an air outlet slot shaped to expel a curtain of air separating an interior of the elevator car into at least two air compartments defined by the “barrier” of the air curtain.