An elevator system includes a hoistway and an elevator car positioned in the hoistway and configured to travel along the hoistway. The elevator car includes an elevator car door. A door operator assembly is fixed in the hoistway at a landing floor and includes a sensor to sense presence of the elevator car at the landing floor; and a door operator mechanism to open both the elevator car door and a landing floor door when the sensor senses presence of the elevator car at the landing floor. A light source may be fixed at the hoistway and a light transmitter is positioned at the elevator car to gather light from the light source and output the light into an interior of the elevator car. A ventilation system may be fixed at the hoistway and is interactive with the elevator car to condition an interior of the elevator car.

A method of monitors a climate quality within a building having an elevator running between floors of an elevator hoistway. The elevator car of the elevator includes at least an air-quality sensor. The method is characterized in that a fan of the elevator car is running when the door(s) of the car is/are opening at a floor station to suck air from the building's floor level into the elevator car to the vicinity of the air-quality sensor and sensing the air-quality by the sensor preceding to generating data of the air-quality.

Methods, systems, and devices for monitoring air quality and controlling air purification in an environment are described herein. The method can include receiving from a device a plurality of air quality parameters for the environment and receiving an indication representing a potential change in occupancy in the environment. In response to the indication of a potential change in occupancy, the method can include determining an air quality target that is based at least in part on at least one air quality parameter in the plurality of air quality parameters and the potential change in occupancy. The air quality parameter can be representative of the quality of air to be achieved in the environment for the change in occupancy. The method can include transmitting instructions to control purification in the environment based at least in part on the air quality target.

An illustrative example embodiment of an elevator cab ventilation device includes a fan module and a ventilation controller that is configured to control operation of the fan module based on an indication of a position of at least one door of the elevator cab. The controller is configured to control the fan module to operate in a first mode to move a first amount of air per unit time when the door is in a first open position. The controller is configured to control the fan module to operate in a second mode to move a second, larger amount of air per unit time when the door is in a second, different open position.

An illustrative example embodiment of an elevator cab air purification device includes a housing having an inlet, an outlet, and at least one air pathway between the inlet and the outlet. A fan module is situated to cause air flow into the housing through the inlet, through the housing, and out of the housing through the outlet. The air flow through the housing includes air flow along the at least one pathway in at least a first direction. An air purifier is situated within the housing and configured to purify air that flows along the at least one pathway before the air exits the housing through the outlet.

An elevator air filtration system having an elevator car, an outdoor intake HEPA air filtration system that creates HEPA filtered air at a desired temperature, humidity and quantity of filtered outdoor air, and a retractable hose system that delivers the HEPA filtered air to the elevator car.

A control device prevents rapid changes in an internal pressure of an enclosed space induced by an external environment. The control device includes a first pressure sensor in the enclosed space, a second pressure sensor outside the enclosed space, a pressurized container and a vacuum container in the enclosed space and a regulator to at least partially compensate for rapid pressure changes in the enclosed space detected in response to signals generated by the first and second pressure sensors. If the detected rapid pressure change is a decrease in the internal pressure in the enclosed space, the regulator controls the pressurized container to provide a controlled supply of air and if the detected rapid pressure change is an increase in the internal pressure in the enclosed space, the regulator controls the vacuum container to remove of air from the enclosed space.

A system for active and automated cleaning of interior surfaces and air within an enclosed space. The system is generally composed of an air cleaning sub-system, a surface cleaning sub-system, and an interface sub-system that is hands-free to prevent contacting fomites and spreading disease. The air cleaning sub-system employs a fan mounted above the enclosed space. In an elevator environment, this can easily be installed to avoid structural crosshead beams. Air is then pushed down through a flexible boot which includes a HEPA filter, pushing filtered and ionized air down past individual's heads and exhausted through the bottom of the enclosed space, such as the toe kick vents in an elevator environment. In this way, the air reaching the individuals within the space is clean, fresh, and has not made contact with other individuals within the space prior to being inhaled.

An elevator system (20) is provided including a hoistway (22) and an elevator car (24) movable within the hoistway (22) between a plurality of landings (26). The elevator car (24) includes at least one air scoop (70) configured to fluidly couple an interior of the elevator car (24) to the hoistway (22) such that a controlled fluid flow may pass there between. The hoistway (22) may or may not include a ventilation opening (50) configured to couple the hoistway (22) to an air source disposed outside of the hoistway (22).

An elevator ventilation fan assembly for hazardous operating environments and comprising a fan disposed within an enclosure to be carried on an elevator cab roof. The fan may be suspended by a fan support framework from at least three non-co-linear suspension locations of the enclosure lid. The assembly may include a vibration isolation element disposed between the fan motor and the enclosure lid, a cover panel supported by a cover support framework on the enclosure lid, a fan guard screen carried by the enclosure lid, a fan motor junction box carried within the enclosure by the lid and accessible via a removable side panel of the enclosure, and/or a fan duct surrounding the fan.