초록 ▼

The invention is a high efficiency particulate (HEPA) filter apparatus and system, and method for assaying particulates. The HEPA filter provides for capture of 99.99% or greater of particulates from a gas stream, with collection of particulates on the surface of the filter media. The invention prov

The invention is a high efficiency particulate (HEPA) filter apparatus and system, and method for assaying particulates. The HEPA filter provides for capture of 99.99% or greater of particulates from a gas stream, with collection of particulates on the surface of the filter media. The invention provides a filter system that can be cleaned and regenerated in situ.

대표청구항 ▼

[What is claimed is:] [1.]providing an in situ filter system for said stream, said system comprising:a HEPA filter, said filter having an influent side and an effluent side, said influent side having an effective pore size of about 0.2 .mu.;means for cleaning said filter by directing a fluid against

[What is claimed is:] [1.]providing an in situ filter system for said stream, said system comprising:a HEPA filter, said filter having an influent side and an effluent side, said influent side having an effective pore size of about 0.2 .mu.;means for cleaning said filter by directing a fluid against said influent side of said filter to remove particulates therefrom; andmeans for collecting said fluid and said particulates;periodically activating said means for cleaning;collecting said fluid and said particulates from said means for collecting; andanalyzing said particulates to monitor said gas stream.