7.1 Oxygen purity percentage (type OC-P)
7.2 High purity indicator
7.4 Low purity indicator
7.5 Malfunction alarm
7.6 Maintenance reminder
7.7 Timed setting, Running time and Malfunction code display
7.8 Elapsed time
EN
8. Power Switch
9. Adjusting Panel and Buttons
10. Positive Pressure Outlet (See Fig. 1)
11. Model label
12. Over current protector
13. Power cord socket
14. Inlet filter access panel
15. Cabinet Air intake filters (two sides)
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