| 摘要 |
A working chamber including: a body case including a work space in an interior thereof; a supply unit configured to supply gas through a supply filter provided at the upper front of the work space; a louver that guides gas to a back surface side of the work space after the gas passes through the supply filter; and an illuminating means positioned lower than the louver and in front of the louver, at least one surface of the louver, which faces the illuminating means, being a reflection surface. |
