PMC4236418_01
PMC4236418_02
Cleanroom workers inside the cleanroom. a. Inside the cleanroom, workers are assembling with components of endoscopic devices with chloroform adhesives. b. The cleanroom is covered up tightly.
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PMC4236418_02_40557_2014_49_Fig1_HTML.jpg
Fig1
This small business is consists of 12 workers. 4 workers are mainly assigned to the cleanroom work (Figure 1).
The percentage of outdoor air recirculated can be calculated by inputting the tracer values into this formula.
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PMC4236418_02_40557_2014_49_Fig2_HTML.jpg
Fig2
Therefore, we determined the outside air ventilation rate by inputting the tracer values into the formula below (Figure 2).