| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an isolator enabling replacement of a HEPA filter collecting hazardous particulate matter, in which replacement work of the HEPA filter is not performed with a bag such as in a bag-in and bag-out system, and a three-dimensional type HEPA filter is used, which prevents scattering of the hazardous particulate matter, has high resistance to breakage and is usable as a waste container, to make workability easy and perform the replacement work more safely.SOLUTION: In an isolator, a three dimensional type cylindrical bottomed exhaust HEPA filter is installed facing a workroom side opening for discharging dust provided in a workroom and has a HEPA filter opening for taking in dust in the top. A two-ply lid of an upper lid and a lower lid for closing the workroom side opening and the HEPA filter opening is provided on the HEPA filter opening. A knob is provided on the two-ply lid for enabling the two lids to be fixed and integrated with each other or to be separated from each other. When taking out the HEPA filter, the HEPA filter opening is closed by the lower lid and the workroom side opening is closed by the upper lid.</p> |
