Figure 2-5: Hot Swappable Fan Maintenance - Advantech MIC-3056 User Manual

Figure 2-5: Hot swappable fan maintenance

The air filter may become dirty after a period of time. Follow these steps to replace
a filter:
1. Remove the filter cover.
2. Replace the dirty filter with a clean one.
3. Reattach the filter cover.
Repeat steps 1 to 3 to replace other filters.
MIC-3056 User Manual -- Page 12