CLEAN INSIGHTS / Cleaning
Data center cleaning: why cleanliness matters for availability
Cleaning is part of running a data center. Here is how to organise the areas, work windows and records.

Consider the whole environment
Cleaning plans also need to cover areas beyond server rows: trays, raised floors, access zones and plant rooms. Consider where people, materials and air move between them. This helps identify locations where further contamination may enter.
Address sources of contamination
Deliveries, packaging, frequent access and refurbishment can change cleaning needs. Establish where unpacking takes place and how construction is separated from live operations. Repeatedly removing deposits alone may leave their source unresolved.
Plan cleaning by zone
A practical plan distinguishes IT areas, technical support rooms and circulation routes. Agree scope, access, methods and documentation for each zone, with specific approvals for sensitive areas. This supports coordination between operations, facility management and other contractors.
Define work windows and phases
Larger areas can be cleaned in stages. Establish which areas must remain accessible and how each stage will be handed over. Coordinate changes to cooling, equipment or cabling with the responsible specialists.
Distinguish surface results from air measurements
Visual inspection and particle measurements answer different questions. ISO 14644-1 classifies air cleanliness by particle concentration. A cleaned surface or an isolated reading does not itself establish a room classification. If a classification assessment is required, agree the measurement plan and assessment basis first.
Use the findings in day-to-day operations
A final report should clearly identify completed zones, dates, observations and agreed evidence. Record recurring dust ingress and outstanding areas with next steps. This provides a practical basis for the next clean and targeted preventive measures.
FOR YOUR PLANNING
Your checklist at a glance
- Define zones and interfaces
- Consider dust sources and deliveries
- Coordinate work stages with operations
- Define the objective before measuring
- Use findings in the ongoing care plan
