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Glove boxes designed to provide an enclosure with a very low-leak, controlled environment (e.g., very low oxygen level, inert gas). These boxes typically include transfer chambers to facilitate the introduction of materials and/or devices with minimal compromise of the glove box atmosphere, inlet and outlet valves to establish and maintain the controlled atmosphere, pressure monitors, and a vacuum pump for the transfer chamber. They may also include automatic purge sequencers, pressure controllers, oxygen and moisture removers, and alarms. Controlled atmosphere isolation glove boxes are used to perform processes (e.g., laboratory tests) that require conditions such as very low levels of oxygen, moisture, or particulates; they are also used to provide an environment consisting of only a specific gas (e.g., nitrogen, argon, helium) or combination of gases.
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