Filter and Equipment Health
Use this guide when maintenance and facility teams need to review filter condition, equipment health, vibration risk, and preventive maintenance in a cleanroom or semiconductor facility context.
Health Flow
Prerequisites
| Requirement | Why it matters |
|---|
| Equipment owner | Health output needs a maintenance reviewer. |
| Filter mapping | Filter pressure drop and runtime must connect to the right cleanroom or equipment. |
| Work-order path | Accepted maintenance recommendations need an execution route. |
| Input | Review focus |
|---|
| Filter data | Pressure drop, runtime, replacement date, threshold assumptions, and remaining life. |
| Equipment health | Age, alerts, maintenance state, sensor deviation, score, and grade. |
| Vibration | Frequency-domain velocity, VC curve target, violation details, and severity. |
| Maintenance schedule | Planned work, due dates, owner, and related alerts. |
| Work feedback | Completion note, actual action, outcome, and follow-up requirement. |
Procedure
- Confirm equipment and filter identity.
- Review source freshness, pressure-drop history, and thresholds.
- Review equipment health and vibration assessment.
- Compare output with open work and maintenance schedule.
- Prepare a maintenance recommendation only after owner review.
- Record work outcome and update the next review plan.
Expected Output
The output is a reviewed maintenance record that explains filter or equipment risk, source evidence, approved action, and feedback path.
Validation Checklist
- Filter and equipment IDs resolve to the correct cleanroom or system.
- Pressure-drop and vibration units are visible.
- Health score includes contributing dimensions.
- Open work was checked before creating new work.
- Outcome feedback is captured after completion.
Failure Handling
| Symptom | Response |
|---|
| Filter history is incomplete | Use review notes and request missing source data before replacement planning. |
| Health score conflicts with field observation | Attach field evidence and mark the record for owner review. |
| Vibration target is unclear | Confirm VC curve requirement before using the result. |
| Work feedback is missing | Keep the maintenance loop open until closure evidence is added. |