A general-purpose air sterilizing system destroys activation of air-borne pathogens, designed with different embodiments. The methods used to build the apparatus allows destroying airborne pathogens like bacteria, mold, mildew, allergens and deactivates viruses such as SARS CoV-2. The apparatus supports air circulation system that contains filter which comprising array of Ultraviolet (UV) Light Emitting Diode (LEDs) of 262-nm wavelength, AKA UVC, are used.

A vehicle information communication system includes: a plurality of vehicles; and a server configured to communicate with the plurality of vehicles. The server is configured to perform communication by using either a first communication mode or a second communication mode. In the first communication mode, the server receives and transmits information to and from each of the plurality of vehicles individually. In the second communication mode, the server receives and transmits the information to and from a part of the plurality of vehicles and the information is shared among the plurality of vehicles by using vehicle-to-vehicle communication.

A method for air purification is disclosed, comprising directing air through a particle removal filter that acts to filter the air for particle phase pollutants to thereby produce particulate filtered air; and directing an amount of the particulate filtered air through a gas removal filter that acts to filter the particulate filtered air for gas phase pollutants to thereby produce gas filtered air; the particle removal filter with the first blower and the gas removal filter with the second blower are housed in different enclosures and they are allowed to operate in a way that; the two different units are selectable to operate separately without connection in a first mode, and to operate together connectively in a second mode; when the two different units are selected to operate together connectively in the second mode, the amount of particulate filtered air directed through the gas removal filter is based on a concentration of particle phase pollutants in the air.

An environmental control system that includes a first environmental control system pack, a first recirculation fan assembly, and a cabin air sensor unit. The first environmental control system pack is arranged to provide conditioned air to an aircraft cabin. The first recirculation fan assembly is arranged to recirculate a first cabin air fluid flow back to the aircraft cabin. The cabin air sensor unit is arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller.

Methods for controlling air filtration in an enclosure include measuring contaminants in an internal and an external environment using respective internal and external contaminant sensors. An increase in a corrosion rate is determined for objects in the enclosure if unfiltered external air intake is increased for cooling based on the measured contaminants in the internal and external environments. An air pressure needed to filter external air using a filter in the filtered air intake is determined. An intake of unfiltered external air is controlled by bypassing the filter in the filtered air intake, based on the corrosion rate increase and the determined air pressure. A predicted filter lifetime is updated based on the intake of unfiltered external air. A warning is provided if the contaminant sensor information associated with the filter exceeds an instantaneous failure threshold or if the determined remaining filter lifetime falls below a filter lifetime threshold.

An air purification device includes a device main body, a purification filter and a gas detection module. The device main body includes a gas-inlet opening and a gas-outlet opening. The purification filter is disposed in the device main body and includes at least one activated carbon layer and at least one zeolite layer stacked on each other, wherein the activated carbon layer filters and absorbs suspended particles contained in an air introduced through the gas-inlet opening, and the zeolite layer includes porous structures with hydrophobic property for controlling and absorbing volatile organic compounds contained in the air introduced through the gas-inlet opening, thereby a purified gas is generated from the air and is discharged through the gas-outlet opening. The gas detection module is disposed in the device main body for detecting and obtaining a gas quality data of the air passing through the gas-inlet opening and outputting the gas quality data.

Disclosed is a method and system for the mitigation of risk of exposure to contaminants and providing information thereof. The method and system thereby follow the National Institute for Occupational Safety and Health (NIOSH) Hierarchy of Controls to implement a method and system to optimize safety guidelines and increase mitigation effectiveness. The method includes providing or using an existing air moving unit, mounting sensors for the continuous measurement of contaminants, flushing the enclosed area prior to and after occupancy for a specific time, filtering, diluting the enclosed area during occupancy, pressurizing for contamination control, maintaining humidity between 40% and 60%, providing ultraviolet germicidal irradiation to destroy and deactivate nuclear material in contaminants, cleaning, adjusting operational parameters between energy conservation mode and pandemic mode, and providing a display having information thereof about the enclosed area including the attributes and characteristics continuously monitored by sensors.

An air cleaner is provided that may include a case including a first suction inlet, the case having a cylindrical or cone shape; a fan housing provided inside of the case, the fan housing accommodating a fan therein; a filter provided at a suction side of the fan, the filter filtering foreign materials in air which is suctioned through the first suction inlet; and a housing suction flow path formed between an outer surface of the fan housing and an inner surface of the case, the housing suction flow path allowing air which is suctioned through the first suction inlet to flow toward and through the filter. The housing suction flow path may include a first flow path inlet having a predetermined first width, and a second flow path inlet through which air having passed through the first flow path inlet flows, the second flow path inlet having a second width greater than the first width.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

A smart air cleaner includes a main body, a sensor, a clean module and a fan. The main body further has at least one main body air inlet and at least one main body air outlet. The sensor located inside the main body for detecting air quality of a first air entering the main body further includes at least one sensor's air-inlet and at least one sensor's air-outlet. The clean module located inside the main body is to purify the first air. The fan located inside the main body is to draw the first air into the main body via the main body air inlet. After the first air passes the clean module to form a second air, the purified second air is then sent out of the main body via the main body air outlet.