Loading patent…
AssigneeInstitute of Occupational Safety and Health, Council of Labor Affairs, Executive Yuan
InventorsTung-Sheng Shih, Wen-Yu Yeh, Chih-Chieh Chen, Chane-Yu Lai
Estimating the term…
An aerosol size-selective sampling device is composed of pre-filter, a base housing, and a collector. The device is intended to take an aerosol sample from a given atmospheric air. The pre-filter is composed of two or more porous filtration materials arranged in one end of the base housing in a parallel manner for allowing the atmospheric air to pass therethrough in a parallel and diverting pattern before the atmospheric air is allowed to pass in a converging manner through the collector which is located in another end of the base housing. The pre-filter is able to attain a desired penetration rate profile as a function of an aerodynamic diameter of aerosol contained in the atmospheric air within a predetermined range of aerodynamic diameter.
An aerosol size-selective sampling method comprising taking an aerosol sample from a given atmospheric air by using an aerosol size-selective sampling device comprising a pre-filter, a base housing and a collector, wherein said pre-filter comprises two or more porous filtration materials disposed in an air inlet end of said base housing in a parallel manner, and said collector disposed in an air outlet end of said base housing, and wherein said atmospheric air is passed through said two or more porous filtration materials of said pre-filter in a parallel and diverting pattern before it is allowed to pass in a converging manner through said collector located in said air outlet end of said base housing, and said pre-filter is able to attain a desired penetration rate profile as a function of an aerodynamic diameter of aerosol contained in the atmospheric air within a predetermined range of said aerodynamic diameter.
An aerosol size-selective sampling device comprising:
Dependencies are inferred from the claim text.