Patent ID: 6671303
Filing Date: 2003-12-30
Classification: B01D,G02F,H01S

Abstract:
Apparatus, comprising:an enclosure; a laser located in a gaseous atmosphere within said enclosure; a gas conditioning arrangement located outside of said enclosure, said gas conditioning arrangement including a pump, a catalyst for converting ozone into oxygen, a desiccant medium for minimizing water vapor content of the gaseous atmosphere, a medium for trapping organic vapors, and a filter for trapping particulate matter, said gas conditioning arrangement being in fluid communication with the enclosure; and wherein said pump is arranged to extract gas from said enclosure and deliver said extracted gas to said gas-conditioning arrangement with said gas conditioning arrangement being configured such that said extracted air delivered thereto passes through said catalyst, said desiccant medium, said organic vapor trapping medium, and said filter in the sequence listed and is then returned to said enclosure.