Abstract
The architectonic airtightness at the biosafety facilities and clean room is very important function from contamination control and the energy saving. But the evaluation standard about the airtightness is not maintained in Japan, and technological knowledge is not accumulated sufficiently. Others have estimated measurement of the airtightness in many facilities. This report based on the results, explains about architectonic airtightness, method for measurement, investigation method of leakage points and measuring evaluation cases at cleanrooms. Besides, it’s expected that the proposed original evaluation standard is useful for appropriate building facilities and maintenance management.
