A fragrance container of a scenting device, having a wall enclosing an interior space, wherein at least one air inlet opening and at least one air outlet opening are provided in the wall for air to flow through the fragrance container, wherein at least one carrier medium for a fragrance is arranged in the interior space of the fragrance container, wherein the at least one carrier medium has a plurality of free surfaces along which the air can flow through from the air inlet opening to the air outlet opening for the purpose of absorbing the fragrance.

Implementations are directed to a smart filter apparatus including an air filter, a sensor supported by the air filter and sensitive to a pathogen, and a control unit in data communication with the sensor and operable to perform operations including receiving, from the sensor, an indication of the pathogen present in air incident on the sensor, generating, by the control unit, a pathogen alert response, and providing, by the control unit, the pathogen alert response.

Implementations are directed to a smart filter apparatus including an air filter, a sensor supported by the air filter and sensitive to a pathogen, and a control unit in data communication with the sensor and operable to perform operations including receiving, from the sensor, an indication of the pathogen present in air incident on the sensor, generating, by the control unit, a pathogen alert response, and providing, by the control unit, the pathogen alert response.

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 air conditioner is disclosed. The air conditioner comprises a storage, and a processor for identifying a target space on the basis of first gas sensing data, moving the air conditioner to the target space, acquiring information about a gas type on the basis of second gas sensing data sensed within the target space and reference data stored in the storage, and performing an air conditioning operation on the basis of the information about the gas type, wherein the gas sensing data is sensed by a sensor comprising a plurality of sensing modules that react to different gases.

An air conditioner is disclosed. The air conditioner comprises a storage, and a processor for identifying a target space on the basis of first gas sensing data, moving the air conditioner to the target space, acquiring information about a gas type on the basis of second gas sensing data sensed within the target space and reference data stored in the storage, and performing an air conditioning operation on the basis of the information about the gas type, wherein the gas sensing data is sensed by a sensor comprising a plurality of sensing modules that react to different gases.

An airflow appliance for mitigating spread of infectious disease. The appliance may include an elongated body configured for being disposed across the top surface of a table, first and second side surfaces of the body respectively facing first and second sides of the table; at least one air intake disposed along at least one of top or side surfaces of the body; at least one air exhaust disposed along at least one of bottom or end surfaces of the body; at least one fan disposed in the body, the at least one fan drawing air from the at least one air intake and expelling air from the at least one air exhaust; wherein the at least one air intake is configured to draw air from at least one of the first and second sides of the table; and wherein the at least one air exhaust is configured to blow air away from at least one of the first and second sides of the table.

An airflow appliance for mitigating spread of infectious disease. The appliance may include an elongated body configured for being disposed across the top surface of a table, first and second side surfaces of the body respectively facing first and second sides of the table; at least one air intake disposed along at least one of top or side surfaces of the body; at least one air exhaust disposed along at least one of bottom or end surfaces of the body; at least one fan disposed in the body, the at least one fan drawing air from the at least one air intake and expelling air from the at least one air exhaust; wherein the at least one air intake is configured to draw air from at least one of the first and second sides of the table; and wherein the at least one air exhaust is configured to blow air away from at least one of the first and second sides of the table.

A method of filtering indoor air pollution for filtering air pollutant in an indoor space is disclosed. A plurality of gas processing devices is provided for detecting and filtering air pollutant, and transmitting device inner gas detection data. A connection device is provided for receiving and transmitting the device inner gas detection data to a cloud processing device. The cloud processing device intelligently compares and selects to drive a closest gas processing device to filter the air pollutant and drive the gas processing devices to determine a convection path and generate at least one airflow . The airflow accelerates the movement of the air pollutant along the convection path to move the air pollutant towards the closest processing device adjacent to the air pollutant for filtering, so that the air pollutant in the indoor space can be filtered rapidly to obtain a clean, safe and breathable air condition.