An aspirating detection system for monitoring for the presence of a pathogen, the aspirating detection system including: a network of one or more pipes for sampling air from a plurality of locations monitored by the aspirating detection system; a sensor unit 3 comprising a housing 13 fluidly connected to the network of one or more pipes, and a biosensor 12 mounted within the housing, the biosensor being configured to monitor for the presence of the pathogen; and an aspirator 15 configured to draw airflow through the network of one or more pipes and through the biosensor 12.

Disclosed is a dynamic demonstration method for water-soluble ion concentration and components of an aerosol. The method comprises: obtaining concentration data of each ion in an atmospheric aerosol of a target city in a preset time period and filling the concentration data in a data table; obtaining vertex coordinates of each ion in a Maucha graph according to equivalent concentration data of each ion; drawing an aerosol ion Maucha graph of the target city in each preset time period according to the vertex coordinates; and finally making a dynamic picture according to a temporal graph of aerosol ion concentration in various time periods.

The present application discloses a material handling system and a monitoring system and a monitoring method for particles in a traveling area of overhead hoist transfers, wherein the monitoring system for particles in the overhead hoist transfer traveling area comprises gas sampling modules, a particle counter and a monitoring device. The gas sampling module is configured to obtain the gas to be tested around traveling wheels of each overhead hoist transfer (OHT). The particle counter is configured to test the gas to be tested for the size and number of particles in the gas to be tested. The monitoring device is electrically connected to the particle counter, and is configured to acquire the size and number of the particles tested and alarm when determining that the content of particles does not meet a preset standard.

A sampling device is constructed having an airflow path from a size-selective inlet to a device outlet, without using any tubing. The size-selective inlet includes at least one of an impactor, a filter, a cyclone, and an inhalable inlet. The device includes a sampling assembly configured to be removably coupled directly to a sampling device housing (e.g., without using tubing), and an airflow assembly that may be constructed without using tubing.

As described herein, a method for measuring air quality comprises operating a real-time air quality sensor to continually measure a parameter of environmental air quality; automatically determining if the parameter indicates that a select environmental condition has been reached and providing an output signal responsive thereto; communicating the output signal to an air-quality sampling system; automatically operating the air-quality sampling system responsive to the output signal to collect an air sample for a pre-determined time; and providing laboratory analysis of the collected air sample.

An embodiment moving object includes a body, a driving unit, an odor sensing module disposed in the body and including a plurality of gas sensors, and a control unit configured to determine an odor using an output value of each of the gas sensors, determine a movement direction based on a change in concentration of the odor, and control the driving unit to move the body in the determined movement direction.

A mobile power device capable of detecting gas is disclosed and includes a main body, a gas detection module, a driving and controlling board, a power module and a microprocessor. The main body includes a ventilation opening, a connection port and an accommodation chamber. The ventilation opening is in communication with the accommodation chamber. The gas detection module and the driving and controlling board are disposed within the accommodation chamber. The gas detection module, the power module and the microprocessor are fixed on and electrically connected to the driving and controlling board. The power module is capable of storing an electric energy and outputting the electric energy outwardly. The microprocessor enables the gas detection module to detect and operate. The microprocessor converts the detection information of the gas detection module into a detection data, which is stored and transmitted to the mobile device or an external device.

A high aspect ratio vacuum air sampling assembly is disclosed including a first canister module. The canister module includes a high aspect ratio conduit having an aspect ratio of at least 30:1, an inlet disposed at an inlet end of the conduit, and an outlet with an outlet valve disposed at an outlet end of the conduit. The outlet is in fluid communication with the inlet through an internal volume of the conduit. An air sampling train is attached to and in fluid communication with the inlet, and includes an inlet valve, a precision orifice, and a flow controller. The inlet valve and the outlet valve are configured to isolate the internal volume of the conduit from fluid communication with an external environment when the inlet valve and the outlet valve are closed. The assembly may further include a second canister module or more in sequence.

A gas sensor includes a suction inlet, a housing communicating with the suction inlet, a gas sensor array disposed in an inside of the housing, and a suction unit disposed at an end of the housing. The suction unit is configured to perform a first suction conveying a gas component in air to the gas sensor array through the suction inlet, and perform a second suction conveying the gas component to the gas sensor array at a flow rate smaller than a flow rate of the first suction. The suction unit is configured to perform the second suction together with the first suction. The gas sensor array is configured to operate while the suction unit performs the second suction.

A method for collecting and analysing airborne particles, including a step of eluting particles precipitated on a collecting surface, a step of analysing the airborne particles collected in the reaction chamber, the eluting step being carried out by heating a first reservoir containing the elution liquid to a first temperature value, the analysing step being carried out by heating the reaction chamber to a second temperature value higher than the first temperature value, so as to: activate a detection reaction in the reaction chamber, isolate the reaction chamber during the detection reaction, initiate a device for sealing the reaction chamber, a step of sealing the reaction chamber.